CN115556649A

CN115556649A - Child safety seat with linkage lock releasing function

Info

Publication number: CN115556649A
Application number: CN202211283569.4A
Authority: CN
Inventors: 郭毅; 张凯
Original assignee: Ningbo Baby First Baby Products Co Ltd
Current assignee: Ningbo Baby First Baby Products Co Ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-01-03

Abstract

The invention provides a child safety seat with a linkage lock release function, which comprises a seat body, a base, a rotating disc, a lock release handle and a pull-press dual-purpose piece, wherein the base is also movably connected with a rotating lock release assembly locked with the rotating disc, and the rotating lock release assembly and the lock release handle are both movably connected with the pull-press dual-purpose piece; the chair body is provided with a front lock rod and a rear lock rod, and the rotating disk is movably connected with a front hook which is used for being locked and matched with the front lock rod and a rear hook which is used for being locked and matched with the rear lock rod; the front hook unlocking assembly and the rear hook unlocking assembly are in linkage connection with the unlocking handle; the dual-purpose piece is pulled to drive the unlocking handle to unlock, the unlocking handle drives the front hook unlocking component and the rear hook unlocking component to simultaneously act, the front hook unlocking component drives the front clamping hook and the rear hook unlocking component drives the rear clamping hook to simultaneously unlock, and the chair body is simple in structure, few in parts, low in cost and convenient to operate.

Description

Child safety seat with linkage lock releasing function

Technical Field

The invention relates to the technical field of automobile safety articles, in particular to a child safety seat with a linkage lock release function.

Background

Child safety seats generally include a base and a rotating disk that are rotatably connected to one another, with a basket or safety seat removably connected to the rotating disk, the basket being primarily for use by younger infants and the safety seat being primarily for use by older children. In order to facilitate alternate installation of the lifting basket or the safety seat on the base or convenient detachment of the lifting basket or the safety seat, a release structure is arranged between the base and the lifting basket or the safety seat, but the existing release structure is complex in design, multiple in parts and complex in operation.

Disclosure of Invention

In order to solve at least one aspect of the above problems, the present invention provides a child safety seat with a linkage release function, including a seat body, a base, a rotating disc, a release handle and a dual-purpose pull-press member, wherein the rotating disc is rotatably connected to the base, the release handle and the dual-purpose pull-press member are both movably connected to the base, the base is further movably connected to a rotating release assembly locked to the rotating disc, and the rotating release assembly and the release handle are both movably connected to the dual-purpose pull-press member; the chair body is provided with a front lock rod and a rear lock rod, and the rotating disk is movably connected with a front hook which is used for being locked and matched with the front lock rod and a rear hook which is used for being locked and matched with the rear lock rod; the front hook unlocking assembly is used for driving the front hook to unlock, and the rear hook unlocking assembly is used for driving the rear hook to unlock; when the pulling and pressing dual-purpose piece is pulled to drive the release handle to release the lock, the release handle drives the front hook release assembly and the rear hook release assembly to simultaneously act, so that the front hook release assembly drives the front clamping hook and the rear hook release assembly to drive the rear clamping hook to simultaneously release the lock to unlock the chair body.

Optionally, the front hook release assembly includes a front hook release driving member and a front hook locking limiting rod connected to each other, the release handle is linked to the front hook release driving member, the front hook is interlocked with the front lock rod, the front hook locking limiting rod cooperates with the front hook to limit the motion of the front hook, when the pull-press dual-purpose member is pulled to drive the release handle, the front hook release driving member drives the front hook locking limiting rod to move so as to separate the front hook locking limiting rod from the front hook, thereby realizing the release of the front hook; the rear hook unlocking assembly comprises a rear hook unlocking driving piece and a rear hook locking limiting rod which are connected with each other, the unlocking handle is in linkage connection with the rear hook unlocking driving piece, when the rear clamping hook is interlocked with the rear locking rod, the rear hook locking limiting rod is matched with the rear clamping hook to limit the action of the rear clamping hook, and when the pull-press dual-purpose piece is pulled to drive the unlocking handle, the rear hook unlocking driving piece drives the rear hook locking limiting rod to move so that the rear hook locking limiting rod is separated from the rear clamping hook, so that the rear clamping hook is unlocked.

Optionally, the front hook release lock driving part is provided with a front driving block, the rear hook release lock driving part is provided with a rear driving block, the base is hinged with a front hook release lock block, the front hook release lock block is provided with a third pin shaft, an abutting block and a front shifting block in hooking connection with the front side of the front driving block, the front shifting block and the abutting block are respectively located on the upper side and the lower side of the third pin shaft, and the release handle is provided with a rear hook release lock block in hooking connection with the rear side of the rear driving block and a slope in abutting connection with the rear side of the abutting block; when the pulling and pressing dual-purpose piece is pulled to drive the lock releasing handle to move forwards, the rear hook lock releasing block moves to drive the rear driving block to move forwards, and the slope moves forwards to drive the front hook lock releasing block to rotate so as to enable the front shifting block to turn backwards to drive the front driving block to move backwards through the front shifting block.

Optionally, the front hook release assembly further comprises a front hook return elastic piece, and two ends of the front hook return elastic piece are respectively connected with the front hook release driving piece and the rotating disc; the rear hook unlocking assembly further comprises a rear hook resetting elastic piece, and two ends of the rear hook resetting elastic piece are respectively connected with the rear hook unlocking driving piece and the rotating disc.

Optionally, the front hook release driving part is provided with a front driving block, the rear hook release driving part is provided with a rear driving block, the base is movably connected with a first side release piece and a second side release piece, the first side release piece is provided with a first side shifting block hooked and connected with the front driving block, and the second side release piece is provided with a second side shifting block hooked and connected with the rear driving block; when the pull-press dual-purpose piece is pulled to drive the release handle to move forwards, the first side shifting block moves to drive the front driving block to move leftwards, and the second side shifting block moves to drive the rear driving block to move rightwards.

Optionally, the release handle is equipped with first cylinder and second cylinder, first side release piece be equipped with first cylinder sliding fit's first side chute, second side release piece be equipped with second cylinder sliding fit's second side chute, the base is equipped with the confession first side release piece with the guide rail of second side release piece horizontal slip.

Optionally, the front hook release driving part is provided with a front chute, the rear hook release driving part is provided with a rear chute, and the rotating disc is provided with a front vertical groove corresponding to the front chute and a rear vertical groove corresponding to the rear chute; the front hook locking limiting rod penetrates through the front chute and the front vertical groove and is in sliding connection with the front chute and the front vertical groove, when the pull-press dual-purpose piece is pulled to drive the unlocking handle, the front hook unlocking driving piece drives the front hook locking limiting rod to move from one end of the front vertical groove to the other end, so that the front hook locking limiting rod and the front hook are separated from each other, and the front hook is unlocked; the rear hook locking limiting rod penetrates through the rear chute and the rear vertical groove and is in sliding connection with the rear chute and the rear vertical groove, when the pull-press dual-purpose piece is pulled to drive the release handle, the rear hook release driving piece drives the rear hook locking limiting rod to move from one end of the rear vertical groove to the other end, so that the rear hook locking limiting rod and the rear hook are separated from each other, and release of the rear hook is achieved.

Optionally, the front hook is provided with a front lock groove in locking fit with the front lock rod and a front limit part abutted against the front hook locking limit rod, the rear hook is provided with a rear lock groove in locking fit with the rear lock rod and a rear limit part abutted against the rear hook locking limit rod, and both the front hook and the rear hook are hinged to the rotating disk; the two ends of the front hook elastic piece are respectively connected with the front hook and the rotating disk, and the two ends of the rear hook elastic piece are respectively connected with the rear hook and the rotating disk.

Optionally, the rotary release assembly disengages from the rotary disk to effect rotary release of the rotary disk when the pull-press dualpurpose is pressed downward; the base is provided with a waist-shaped groove, the pull-press dual-purpose piece is provided with a first pin shaft movably connected with the waist-shaped groove, when the pull-press dual-purpose piece is pressed downwards, the pull-press dual-purpose piece rotates around the first pin shaft, and the first pin shaft is rotatably connected with the waist-shaped groove; when the pulling and pressing dual-purpose piece is pulled forwards, the first pin shaft moves forwards in the waist-shaped groove, and the first pin shaft is connected with the waist-shaped groove in a sliding mode; when the pulling and pressing dual-purpose piece needs to be pressed downwards to achieve rotating unlocking of the rotating disc, the first pin shaft is abutted to the rear end of the waist-shaped groove.

Optionally, the release handle is provided with an abutting table, the front end of the pull-press dual-purpose piece is provided with an abutting surface, and when the pull-press dual-purpose piece is pulled forwards, the abutting surface abuts against the abutting table; still include the elastic component that resets, the both ends of the elastic component that resets respectively with draw and press the dual-purpose piece with the base is connected.

Optionally, the rotary unlocking assembly comprises a rotary unlocking block and a rotary unlocking elastic piece, the rotary unlocking block is provided with a second pin shaft, the base is provided with a hinge hole in hinged connection with the second pin shaft, two ends of the rotary unlocking elastic piece are respectively connected with the rotary unlocking block and the base, and the rotary unlocking block is abutted to the tension and compression dual-purpose piece; when the pull-press dual-purpose piece is not pressed downwards, the rotation release locking piece is locked with the rotation disc; when the pulling and pressing dual-purpose piece is pressed downwards, the rotating unlocking block is pressed downwards and rotates around the second pin shaft to be separated from the rotating disc, and therefore the rotating unlocking of the rotating disc is achieved.

Optionally, a plurality of mounting grooves are formed at the edge of the rotating disc at intervals, and one of the mounting grooves is selected to be in plug-in locking connection with the rotating unlocking block; the rotary release lock block is provided with a yielding groove so that the pull-press dual-purpose piece is separated from the rotary release lock block when the pull-press dual-purpose piece is pulled forwards; the rotary release lock block is provided with a bulge which is abutted against the rear end of the pull-press dual-purpose piece.

Compared with the prior art, the child safety seat with the linkage unlocking function has the advantages that the unlocking handle is driven to drive the front hook unlocking assembly and the rear hook unlocking assembly to move simultaneously by pulling the pull-press dual-purpose piece so as to drive the front clamping hook and the rear clamping hook to unlock simultaneously, the front clamping hook and the rear clamping hook are simultaneously linked and unlocked by pulling the unlocking handle, the structure is simple, the number of parts is small, the cost is low, and the operation is convenient.

Drawings

FIG. 1 is a partial exploded view of a child safety seat with a linked release function according to an embodiment of the present invention;

FIG. 2 is a partial exploded view of a child safety seat with a linked release function according to an embodiment of the present invention;

FIG. 3 is a structural view of a chair body according to an embodiment of the present invention;

FIG. 4 is a view showing the assembly of the release handle with the first side release and the second side release in accordance with the embodiment of the present invention;

FIG. 5 is a block diagram of the assembly of the base and the release handle according to the embodiment of the present invention;

FIG. 6 is a partial block diagram of a child safety seat with a linked release function according to an embodiment of the present invention;

FIG. 7 is a partial structure view of the child safety seat with the linked unlocking function according to the embodiment of the present invention;

FIG. 8 is a cross-sectional view of a child safety seat with a linked release function according to an embodiment of the present invention when locked;

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

FIG. 10 is an enlarged view of portion B of FIG. 8;

FIG. 11 is a cross-sectional view of a child safety seat with a linked release function according to an embodiment of the present invention when released;

FIG. 12 is an enlarged view of portion C of FIG. 11;

FIG. 13 is an enlarged view of portion D of FIG. 11;

FIG. 14 is a cross-sectional view of a child safety seat with a linked release function with a swivel plate rotated to a 90 position and locked in accordance with an embodiment of the present invention;

FIG. 15 is an enlarged view of section E of FIG. 14;

FIG. 16 is an enlarged view of portion F of FIG. 14;

FIG. 17 is a cross-sectional view of a child safety seat with a coordinated release function according to an embodiment of the invention when the rotating disc is rotated to a 90 position and released;

FIG. 18 is an enlarged view of portion G of FIG. 17;

FIG. 19 is an enlarged view of portion H of FIG. 17;

FIG. 20 is a fragmentary, exploded view of a child safety seat with a coordinated release function according to an embodiment of the invention;

FIG. 21 is a partial block diagram of a child safety seat with a linked release function according to an embodiment of the present invention;

FIG. 22 is a structural view of a rotating disk of the embodiment of the present invention;

FIG. 23 is a partial cross-sectional view of a child safety seat having a linked release function according to an embodiment of the present invention in an initial state;

FIG. 24 is a partial cross-sectional view of a child safety seat with a linked release feature of an embodiment of the present invention when the dual purpose member is depressed;

FIG. 25 is a partial cross-sectional view of a child safety seat with a linked release function according to an embodiment of the present invention when the pull/push dual purpose member is pulled;

FIG. 26 is a second partial schematic view of a child safety seat with a linked release function according to an embodiment of the present invention;

FIG. 27 is an enlarged view of section I of FIG. 26;

FIG. 28 is a block diagram of a rotary release lock of an embodiment of the present invention;

fig. 29 is a partial cross-sectional view of a child safety seat having a linked release function according to an embodiment of the present invention when locked.

Description of the reference numerals:

1. a chair body; 11. a front lock lever; 12. a rear lock lever; 2. a base; 21. a guide rail; 22. a hinge hole; 23. a waist-shaped groove; 24. a cylindrical column; 3. rotating the disc; 31. a front vertical slot; 32. a rear vertical groove; 33. mounting grooves; 34. mounting holes; 4. a lock release handle; 41. the rear hook releases the locking block; 42. a slope; 43. a first cylinder; 44. a second cylinder; 45. a butting table; 5. a front hook; 51. a front lock groove; 52. a front limit part; 6. a rear hook; 61. a rear lock groove; 62. a rear limit portion; 7. a front hook release assembly; 71. a front hook release lock drive; 711. a front drive block; 712. a front chute; 72. the front hook locks the limiting rod; 73. the front hook resets the elastic part; 8. a rear hook release assembly; 81. a rear hook release lock drive; 811. a rear drive block; 812. a rear chute; 82. the rear hook locks the limiting rod; 83. the rear hook resets the elastic piece; 9. the front hook releases the locking block; 91. a third pin shaft; 92. a butting block; 93. a front shifting block; 10. a first side release; 101. a first side shifting block; 102. a first side chute; 20. a second side release; 201. a second side shifting block; 202. a second side chute; 30. a front hook elastic piece; 40. a rear hook elastic piece; 50. pulling and pressing the dual-purpose piece; 501. a first pin shaft; 502. a butting surface; 60. a rotary release assembly; 601. rotating the unlocking block; 6011. a protrusion; 6012. a yielding groove; 6013. a second pin shaft; 60131. a notch; 6014. a plug-in part; 602. rotating the release spring; 70. the elastic member is reset.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the normal use of a product.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the drawings of the embodiments of the present invention, a coordinate system XYZ is provided, in which a forward direction of an X axis represents a left direction, a reverse direction of the X axis represents a right direction, a forward direction of a Y axis represents a front direction, a reverse direction of the Y axis represents a rear direction, a forward direction of a Z axis represents an upper direction, and a reverse direction of the Z axis represents a lower direction.

The embodiment of the invention provides a child safety seat with a linkage unlocking function, which is shown in a combined figure 1-25 and comprises a seat body 1, a base 2, a rotary disk 3, an unlocking handle 4 and a pulling and pressing dual-purpose piece 50, wherein the rotary disk 3 is rotatably connected with the base 2, the unlocking handle 4 and the pulling and pressing dual-purpose piece 50 are movably connected with the base 2, the base 2 is also movably connected with a rotary unlocking component 60 locked with the rotary disk 3, and the rotary unlocking component 60 and the unlocking handle 4 are movably connected with the pulling and pressing dual-purpose piece 50; the chair body 1 is provided with a front lock rod 11 and a rear lock rod 12, and the rotating disk 3 is movably connected with a front hook 5 which is used for being locked and matched with the front lock rod 11 and a rear hook 6 which is used for being locked and matched with the rear lock rod 12; the front hook unlocking assembly 7 used for driving the front hook 5 to unlock and the rear hook unlocking assembly 8 used for driving the rear hook 6 to unlock are also included, and the front hook unlocking assembly 7 and the rear hook unlocking assembly 8 are both in linkage connection with the unlocking handle 4; when the pull-press dual-purpose piece 50 is pulled to drive the release handle 4 to release, the release handle 4 drives the front hook release assembly 7 and the rear hook release assembly 8 to simultaneously move, so that the front hook release assembly 7 drives the front hook 5 and the rear hook release assembly 8 drives the rear hook 6 to simultaneously release to unlock the chair body 1.

Wherein, the rotating disc 3 is detachably provided with a chair body, when the pull-press dual-purpose piece 50 is in an initial state, the chair body is locked with the rotating disc 3 so that the chair body is firmly installed, the rotating disc 3 is locked with the rotation release assembly 60 so that the rotating disc 3 can not rotate relative to the base 2, namely, the chair body can not rotate relative to the base 2; when the unlocking handle 4 moves forwards, the locking structure between the chair body and the rotating disc 3 can be unlocked, so that the chair body can be detached from the rotating disc 3; the base 2 is used for mounting the rotating disc 3 and the unlocking handle 4, and the base 2 is also used for being connected with an automobile seat; the chair body 1 is a safe chair or a lifting basket, and the front lock rod 11 and the rear lock rod 12 are respectively arranged at the front end and the rear end of the bottom of the chair body 1; the front hook 5 and the rotary disk 3 are preferably hinged in a mutual movable connection mode, the front hook 5 and the rotary disk 3 are hinged through structural matching of a shaft and a shaft hole, and the front hook 5 and the front lock rod 11 are locked or unlocked through the rotation action of the front hook 5; in a similar way, the preferred mode of the mutual movable connection between the rear hook 6 and the rotating disk 3 is hinged connection, the hinged connection between the rear hook 6 and the rotating disk 3 is realized through the structural matching of a shaft and a shaft hole, and the locking or unlocking with the rear lock rod 12 is realized through the rotating action of the rear hook 6; besides, the front hook 5 and the rotary disk 3 are movably connected with each other and the rear hook 6 and the rotary disk 3 are movably connected with each other, and the front hook 5 can be moved in a translational motion to lock or unlock the front lock rod 11 and the rear hook 6 can be moved in a translational motion to lock or unlock the rear lock rod 12.

When the chair body 1 is locked, the front hook 5 is locked with the front lock rod 11, and the rear hook 6 is locked with the rear lock rod 12, so that the baby and the child can use the chair by bus; when the chair body 1 needs to be unlocked, a user firstly exerts force on the unlocking handle 4 to pull the unlocking handle 4 to move forwards, the unlocking handle 4 drives the front hook unlocking component 7 and the rear hook unlocking component 8 to act simultaneously, the front hook unlocking component 7 drives the front hook 5 to act so that the front hook 5 and the front lock rod 11 are separated from each other to realize unlocking, and meanwhile, the rear hook unlocking component 8 drives the rear hook 6 to act so that the rear hook 6 and the rear lock rod 12 are separated from each other to realize unlocking, so that the unlocking of the chair body 1 is completed.

In the child safety seat with the linkage unlocking function in the embodiment, the unlocking handle 4 is driven by pulling the pull-push dual-purpose piece 50 to simultaneously drive the front hook unlocking component 7 and the rear hook unlocking component 8 to act so as to drive the front hook 5 and the rear hook 6 to simultaneously unlock, and the front hook 5 and the rear hook 6 are simultaneously linked and unlocked by pulling the unlocking handle 4.

Optionally, as shown in fig. 1 to 19, the front hook release assembly 7 includes a front hook release driving part 71 and a front hook locking limiting rod 72 connected to each other, the release handle 4 is linked to the front hook release driving part 71, when the front hook 5 is interlocked with the front lock lever 11, the front hook locking limiting rod 72 cooperates with the front hook 5 to limit the movement of the front hook 5, when the release handle 4 is pulled, the front hook release driving part 71 drives the front hook locking limiting rod 72 to move so that the front hook locking limiting rod 72 and the front hook 5 are separated from each other, so as to release the front hook 5; the rear hook release assembly 8 comprises a rear hook release driving part 81 and a rear hook locking limiting rod 82 which are connected with each other, the release handle 4 is in linkage connection with the rear hook release driving part 81, the rear hook 6 is interlocked with the rear lock rod 12, the rear hook locking limiting rod 82 is matched with the rear hook 6 to limit the action of the rear hook 6, when the release handle 4 is pulled, the rear hook release driving part 81 drives the rear hook locking limiting rod 82 to move so that the rear hook locking limiting rod 82 is separated from the rear hook 6, and the release of the rear hook 6 is realized.

When the chair body 1 is locked, the front hook locking limiting rod 72 is matched with the front hook 5 to limit the action of the front hook 5, so that the front hook 5 is locked with the front lock rod 11, and the rear hook locking limiting rod 82 is matched with the rear hook 6 to limit the action of the rear hook 6, so that the rear hook 6 is locked with the rear lock rod 12; when the chair body 1 needs to be unlocked, a user firstly exerts force on the unlocking handle 4 to pull the unlocking handle 4 to move forwards, the unlocking handle 4 drives the front hook unlocking driving piece 71 and the rear hook unlocking driving piece 81 to move simultaneously, the front hook unlocking driving piece 71 drives the front hook locking limiting rod 72 to move so as to enable the front hook locking limiting rod 72 and the front hook 5 to be separated from each other, and the rear hook unlocking driving piece 81 drives the rear hook locking limiting rod 82 to move so as to enable the rear hook locking limiting rod 82 and the rear hook 6 to be separated from each other, so that the front hook 5 and the rear hook 6 are unlocked simultaneously, and the unlocking of the chair body 1 is completed.

In the embodiment, the front hook unlocking driving piece 71 and the front hook locking limiting rod 72 which are connected with each other and can synchronously move along with the unlocking handle 4, and the rear hook unlocking driving piece 81 and the rear hook locking limiting rod 82 which are connected with each other and can synchronously move along with the unlocking handle 4 are arranged, so that the front hook 5 and the front lock rod 11 are locked and unlocked by matching and separating the front hook locking limiting rod 72 and the front hook 5, and the rear hook 6 and the rear lock rod 12 are locked and unlocked by matching and separating the rear hook locking limiting rod 82 and the rear hook 6, and the structure is simple and reliable, and the operation is convenient.

Optionally, as shown in fig. 1 to 13, the front hook release driving member 71 is provided with a front driving block 711, the rear hook release driving member 81 is provided with a rear driving block 811, the base 2 is hinged to the front hook release locking block 9, the front hook release locking block 9 is provided with a third pin shaft 91, an abutting block 92 and a front shifting block 93 hooked and connected with the front side of the front driving block 711, the front shifting block 93 and the abutting block 92 are respectively located at the upper side and the lower side of the third pin shaft 91, and the release handle 4 is provided with a rear hook release locking block 41 hooked and connected with the rear side of the rear driving block 811 and a slope 42 abutted against the rear side of the abutting block 92; when the unlocking handle 4 is pulled to move forwards, the rear hook unlocking block 41 moves to drive the rear driving block 811 to move forwards, and the slope 42 moves forwards to drive the front hook unlocking block 9 to rotate so that the front shifting block 93 turns backwards to realize that the front shifting block 93 drives the front driving block 711 to move backwards.

Wherein, the third pin shaft 91 is horizontally arranged, the base 2 is provided with a through hole matched with the third pin shaft 91 so as to realize the hinged connection of the front hook release lock block 9 and the base 2; the slope 42 is a slope that is low in front and high in back, and the front hook release driving piece 71 and the rear hook release driving piece 81 are both located above the release handle 4. According to the implementation, the front driving block 711 is in hooked connection with the front shifting block 93, and the rear driving block 811 is in hooked connection with the rear hook unlocking block 41, so that when the unlocking handle 4 is pulled forwards, the front hook unlocking driving piece 71 and the rear hook unlocking driving piece 81 can be close to each other to unlock the front clamping hook 5 and the rear clamping hook 6 respectively, and the implementation is simple in structure and convenient to operate.

When the chair body 1 needs to be unlocked, a user firstly applies force on the unlocking handle 4 to pull the unlocking handle 4 to move forwards, so that the rear hook unlocking block 41 drives the rear driving block 811 to move forwards, and simultaneously the slope 42 moves forwards to drive the front hook unlocking block 9 to turn over, so that the abutting block 92 moves forwards and the front shifting block 93 moves backwards, the rear driving block 811 moves to drive the rear hook locking limiting rod 82 to move so that the rear hook locking limiting rod 82 and the rear hook 6 are separated from each other, the front shifting block 93 moves backwards to drive the front driving block 711 to move backwards, the front driving block 711 moves to drive the front hook locking limiting rod 72 to move so that the front hook locking limiting rod 72 and the front hook 5 are separated from each other, and therefore the front hook 5 and the rear hook 6 are simultaneously unlocked, and the unlocking of the chair body 1 is completed.

Alternatively, as shown in fig. 1 to 19, the front hook release drive 71 is provided with a front chute 712, the rear hook release drive 81 is provided with a rear chute 812, and the rotary disk 3 is provided with a front vertical slot 31 corresponding to the position of the front chute 712 and a rear vertical slot 32 corresponding to the position of the rear chute 812; the front hook locking and limiting rod 72 penetrates through the front chute 712 and the front vertical groove 31 and is connected with the front chute 712 and the front vertical groove 31 in a sliding manner, when the unlocking handle 4 is pulled, the front hook unlocking driving piece 71 drives the front hook locking and limiting rod 72 to move from one end of the front vertical groove 31 to the other end, so that the front hook locking and limiting rod 72 is separated from the front hook 5, and the front hook 5 is unlocked; the rear hook locking limiting rod 82 penetrates through the rear inclined groove 812 and the rear vertical groove 32 and is in sliding connection with the rear inclined groove 812 and the rear vertical groove 32, when the unlocking handle 4 is pulled, the rear hook unlocking driving piece 81 drives the rear hook locking limiting rod 82 to move from one end of the rear vertical groove 32 to the other end, so that the rear hook locking limiting rod 82 and the rear hook 6 are separated from each other, and the rear hook 6 is unlocked.

Wherein, the inclined direction of the front inclined groove 712 is front low and back high, the inclined direction of the back inclined groove 812 is front high and back low, and the length directions of the front vertical groove 31 and the back vertical groove 32 are perpendicular to the rotation plane of the rotating disk 3; the front chute 712, the rear chute 812, the front vertical chute 31, and the rear vertical chute 32 all have a length such that the front hook locking limit rod 72 can slide in the front chute 712 and the front vertical chute 31 and the rear hook locking limit rod 82 can slide in the rear chute 812 and the rear vertical chute 32; the front diagonal groove 712 and the front vertical groove 31 have a width similar to the outer diameter of the front hook locking stopper 72, and the rear diagonal groove 812 and the rear vertical groove 32 have a width similar to the outer diameter of the rear hook locking stopper 82, in order to minimize the play of the structure.

When the front hook 5 is interlocked with the front lock lever 11, the front hook locking limiting rod 72 is matched with the front hook 5 to limit the action of the front hook 5, at this time, the front hook locking limiting rod 72 is positioned at the top end of the front chute 712 and the top end of the front vertical groove 31, when the unlocking handle 4 is pulled, the front hook unlocking driving piece 71 moves forward, the front hook locking limiting rod 72 moves from the top end to the bottom end of the front chute 712, and the front hook locking limiting rod 72 also moves from the top end to the bottom end of the front vertical groove 31 under the acting force of the front chute 712, so that the front hook locking limiting rod 72 is separated from the front hook 5 after moving downwards, and the unlocking of the front hook 5 is realized; when the rear hook 6 is interlocked with the rear lock lever 12, the rear hook locking limiting rod 82 is matched with the rear hook 6 to limit the action of the rear hook 6, at this time, the rear hook locking limiting rod 82 is positioned at the top end of the rear inclined groove 812 and the top end of the rear vertical groove 32, when the unlocking handle 4 is pulled, the rear hook unlocking driving piece 81 moves backwards, the rear hook locking limiting rod 82 moves from the top end to the bottom end of the rear inclined groove 812, and the rear hook locking limiting rod 82 also moves from the top end to the bottom end of the rear vertical groove 32 under the action force of the rear inclined groove 812, so that the rear hook locking limiting rod 82 moves downwards and then is separated from the rear hook 6, and the unlocking of the rear hook 6 is realized.

Optionally, as shown in fig. 1 to 19, the front hook 5 is provided with a front lock groove 51 that is in locking fit with the front lock lever 11 and a front limit portion 52 that abuts against the front hook locking limit rod 72, the rear hook 6 is provided with a rear lock groove 61 that is in locking fit with the rear lock lever 12 and a rear limit portion 62 that abuts against the rear hook locking limit rod 82, and both the front hook 5 and the rear hook 6 are hinged to the rotary disk 3.

The number of the front hooks 5 and the number of the rear hooks 6 are two, the two front hooks 5 are arranged at intervals and are connected with the front lock rod 11 in a locking mode, and the two rear hooks 6 are arranged at intervals and are connected with the front lock rod 11 in a locking mode, so that the chair body 1 can be locked firmly.

When the chair body 1 is locked, the front hook locking limiting rod 72 is abutted with the front limiting part 52 to limit the front locking groove 51 to rotate forwards, so that the front hook 5 is locked with the front locking rod 11, and the rear hook locking limiting rod 82 is abutted with the rear limiting part 62 to limit the rear locking groove 61 to rotate backwards, so that the rear hook 6 is locked with the rear locking rod 12; when the chair body 1 needs to be unlocked, a user firstly applies force on the unlocking handle 4 to pull the unlocking handle 4 to move forwards, the unlocking handle 4 drives the front hook unlocking driving piece 71 and the rear hook unlocking driving piece 81 to move simultaneously, the front hook unlocking driving piece 71 synchronously drives the front hook locking limiting rod 72 to move so that the front hook locking limiting rod 72 is separated from the front limiting part 52, the front locking groove 51 can rotate forwards and is separated from the front locking rod 11, and the rear hook unlocking driving piece 81 drives the rear hook locking limiting rod 82 to move so that the rear hook locking limiting rod 82 is separated from the rear limiting part 62, the rear locking groove 61 can rotate backwards and is separated from the rear locking rod 12, so that the front hook 5 and the rear hook 6 can be simultaneously locked, and the unlocking of the chair body 1 is completed.

Optionally, as shown in fig. 1 to 19, the portable electronic device further includes a front hook elastic member 30 and a rear hook elastic member 40, two ends of the front hook elastic member 30 are respectively connected to the front hook 5 and the rotating disk 3, and two ends of the rear hook elastic member 40 are respectively connected to the rear hook 6 and the rotating disk 3.

The front hook elastic piece 30 and the rear hook elastic piece 40 are both extension springs, so that the front hook 5 can automatically rotate and unlock the front lock rod 11, the rear hook 6 can automatically rotate and unlock the rear lock rod 12, and the operation is more portable; when the release handle 4 is pulled forward to release the lock, the front hook locking limit rod 72 is separated from the front limit part 52, the front hook 5 enables the front lock groove 51 to rotate forward under the force of the front hook elastic piece 30 to realize unlocking, and at the moment, when the chair body 1 is moved upward, the front lock groove 51 can be separated from the front lock rod 11 to disassemble the lower chair body 1; when the release handle 4 is pulled forward to release the lock, the rear hook locking limiting rod 82 is separated from the rear limiting part 62, the rear hook 6 enables the rear locking groove 61 to rotate backward under the force of the rear hook elastic part 40 to realize unlocking, and at the moment, the rear locking groove 61 can be separated from the rear locking rod 12 when the chair body 1 is moved upward to disassemble the lower chair body 1.

Alternatively, as shown in fig. 1 to 19, the front hook release assembly 7 further includes a front hook return elastic member 73, and both ends of the front hook return elastic member 73 are respectively connected to the front hook release driving member 71 and the rotating disk 3; the rear hook release assembly 8 further includes a rear hook return elastic member 83, and both ends of the rear hook return elastic member 83 are connected to the rear hook release driving member 81 and the rotating disk 3, respectively.

The front hook reset elastic piece 73 and the rear hook reset elastic piece 83 are compression springs, two ends of the front hook reset elastic piece 73 are respectively connected with a front elastic piece column of the front hook unlocking driving piece 71 and a first elastic piece column of the rotating disc 3, so that the front hook unlocking driving piece 71 can automatically reset after a user releases the unlocking handle 4, two ends of the rear hook reset elastic piece 83 are respectively connected with a rear elastic piece column of the rear hook unlocking driving piece 81 and a second elastic piece column of the rotating disc 3, so that the rear hook unlocking driving piece 81 can automatically reset after the user releases the unlocking handle 4, the operation is more convenient, and the function is more reliable.

Alternatively, as shown in fig. 1 to 7 and 14 to 19, the rotating disc 3 is rotatably connected to the base 2, the front hook release lock driving member 71 is provided with a front driving block 711, the rear hook release lock driving member 81 is provided with a rear driving block 811, the base 2 is movably connected with a first side release lock 10 and a second side release lock 20, the first side release lock 10 is provided with a first side shifting block 101 hooked with the front driving block 711, and the second side release lock 20 is provided with a second side shifting block 201 hooked with the rear driving block 811; when the release handle 4 is pulled to move forward, the first side shifting block 101 moves to drive the front driving block 711 to move leftward, and the second side shifting block 201 moves to drive the rear driving block 811 to move rightward.

Wherein, the middle part of the base 2 is provided with a cylinder, the middle part of the rotating disc 3 is provided with a rotating hole, and the base 2 and the rotating disc 3 are mutually and rotatably connected through the matching of the cylinder and the rotating hole; the first side release piece 10 and the second side release piece 20 are symmetrically arranged at the left side and the right side of the base 2, and in the process that the release handle 4 moves back and forth, the first side release piece 10 and the second side release piece 20 can be close to and far away from each other in the left-right direction, so that the release and the locking of the front hook 5 and the rear hook 6 are realized when the rotating disc 3 rotates to a 90-degree position relative to the base 2, the structure is simple and reliable, and the operation is convenient.

When the rotating disc 3 rotates to a 90-degree position relative to the base 2 and the chair body 1 needs to be unlocked, a user firstly applies force on the unlocking handle 4 to pull the unlocking handle 4 to move forwards, so that the first side shifting block 101 drives the front driving block 711 to move left, and simultaneously the second side shifting block 201 drives the rear driving block 811 to move right, the rear driving block 811 moves to drive the rear hook locking limiting rod 82 to move so as to separate the rear hook locking limiting rod 82 and the rear hook 6 from each other, and the front driving block 711 moves to drive the front hook locking limiting rod 72 to move so as to separate the front hook locking limiting rod 72 and the front hook 5 from each other, so that the front hook 5 and the rear hook 6 are simultaneously unlocked, and the unlocking of the chair body 1 is completed.

Alternatively, as shown in fig. 1 to 7 and 14 to 19, the release handle 4 is provided with a first cylindrical column 43 and a second cylindrical column 44, the first side release 10 is provided with a first side inclined slot 102 slidably engaged with the first cylindrical column 43, the second side release 20 is provided with a second side inclined slot 202 slidably engaged with the second cylindrical column 44, and the base 2 is provided with a guide rail 21 for allowing the first side release 10 and the second side release 20 to slide left and right.

Wherein, the front end of the first side inclined groove 102 is inclined to the right, so that the first side unlocking piece 10 moves to the left when the unlocking handle 4 moves forward, and the front end of the second side inclined groove 202 is inclined to the left, so that the second side unlocking piece 20 moves to the right when the unlocking handle 4 moves forward; the first side chute 102 and the second side chute 202 each have a length such that the first cylinder 43 is slidable within the first side chute 102 and the second cylinder 44 is slidable within the second side chute 202; the width of the first side chute 102 is similar to the outer diameter of the first cylinder 43 and the width of the second side chute 202 is similar to the outer diameter of the second cylinder 44 to minimize play of the structure.

When the chair body 1 is locked, the first cylinder 43 is located at the rear end of the first side inclined groove 102, the second cylinder 44 is located at the rear end of the second side inclined groove 202, when the unlocking handle 4 is pulled, the first side unlocking piece 10 is matched with the guide rail 21 and matched with the first cylinder 43 through the first side inclined groove 102 to move left, so that the front hook unlocking driving piece 71 is also driven to move left, and finally the front hook 5 is unlocked, and meanwhile, the second side unlocking piece 20 is matched with the guide rail 21 and matched with the second cylinder 44 through the second side inclined groove 202 to move right, so that the rear hook unlocking driving piece 81 is also driven to move right, and finally the rear hook 6 is unlocked.

In the embodiment, the guide rail 21 is arranged on the base 2, and the first cylinder 43 and the second cylinder 44 are arranged on the release handle 4, so that the first side release 10 and the second side release 20 can only move along the length direction of the guide rail 21 when the release handle 4 moves forwards to release the lock, thereby ensuring that the front hook 5 and the rear hook 6 can be smoothly released when the release handle 4 is pulled, and the structure is simple and the operation is convenient.

Optionally, as shown in fig. 20 to 25, the locking device comprises a base 2, a rotating disc 3, a release handle 4 and a dual-purpose pull-press member 50, wherein the rotating disc 3 is rotatably connected with the base 2, the release handle 4 and the dual-purpose pull-press member 50 are both movably connected with the base 2, the base 2 is movably connected with a rotary release assembly 60 locked with the rotating disc 3, and the rotary release assembly 60 and the release handle 4 are both movably connected with the dual-purpose pull-press member 50; when the pull-press dual-purpose piece 50 is pressed downwards, the rotary release lock assembly 60 is disengaged from the rotary disk 3 to realize the rotary release of the rotary disk 3, and when the pull-press dual-purpose piece 50 is pulled forwards, the pull-press dual-purpose piece 50 drives the release handle 4 to move so as to release the chair body.

Wherein, the rotary disk 3 is detachably provided with a chair body, when the pull-press dual-purpose piece 50 is in an initial state, the chair body is locked with the rotary disk 3 to ensure that the chair body is firmly installed, the rotary disk 3 is locked with the rotary release assembly 60 to ensure that the rotary disk 3 can not rotate relative to the base 2, namely the chair body can not rotate relative to the base 2; when the unlocking handle 4 moves forwards, the locking structure between the chair body and the rotating disc 3 can be unlocked, so that the chair body can be detached from the rotating disc 3; the rotary lock release assembly 60 can be disengaged from the rotary plate 3 when moved by pressure, thereby realizing the lock release of the rotary plate 3 in the rotation direction so that the chair body can be rotated.

In the child safety seat with the linkage lock release function in the embodiment, the lock release with the seat body rotation function and the lock release with the seat body disassembly function are respectively realized by arranging the pull-press dual-purpose piece 50 and by pressing the pull-press dual-purpose piece 50 and pulling the pull-press dual-purpose piece 50, so that the child safety seat has the advantages of few parts, low cost, convenient and fast lock release operation and capability of easily completing the lock release with the two functions.

Optionally, as shown in fig. 20 to fig. 25, the base 2 is provided with a waist-shaped groove 23, the dual-purpose pulling and pressing element 50 is provided with a first pin 501 movably connected with the waist-shaped groove 23, when the dual-purpose pulling and pressing element 50 is pressed downward, the dual-purpose pulling and pressing element 50 rotates around the first pin 501, and the first pin 501 is rotatably connected with the waist-shaped groove 23; when the pulling and pressing dual-purpose piece 50 is pulled forward, the first pin 501 moves forward in the waist-shaped groove 23, and the first pin 501 is connected with the waist-shaped groove 23 in a sliding manner.

The waist-shaped groove 23 has a certain length, and the length direction of the waist-shaped groove is consistent with the front-back movement direction of the tension-compression dual-purpose piece 50, so that the tension-compression dual-purpose piece 50 can move front and back relative to the base 2; the width of the waist-shaped groove 23 is similar to the outer diameter of the first pin shaft 501, so that the dual-purpose pull-press piece 50 can rotate around the first pin shaft 501 conveniently; through the cooperation of first round pin axle 501 and waist type groove 23, press and realize the rotation action of drawing and pressing dual-purpose 50 and the translation that the drawing and pressing dual-purpose 50 was realized to the pulling, simple structure, the action is realized reliably.

Alternatively, as shown in fig. 21 and fig. 23 to fig. 25, when the pull-press dual-purpose member 50 needs to be pressed downward to release the rotation of the rotating disk 3, the first pin 501 abuts against the rear end of the waist-shaped groove 23.

The diameter of the semicircle at the front end and the rear end of the waist-shaped groove 23 is close to the outer diameter of the first pin shaft 501, when the pull-press dual-purpose piece 50 is pulled forward, the first pin shaft 501 can move to the front end position of the waist-shaped groove 23, and at the moment, the lock release of the chair body disassembly function can be realized; when the dual-purpose pull-press piece 50 can perform the rotation unlocking operation of the rotating disk 3, the first pin shaft 501 is designed to be abutted against the rear end of the waist-shaped groove 23, so that on one hand, the axial line position of the rotation shaft of the dual-purpose pull-press piece 50 around the first pin shaft 501 in the rotation process is fixed relative to the base 2 and is not easy to deviate, the dual-purpose pull-press piece 50 can be ensured to act on the rotation unlocking component 60 all the time, on the other hand, when the rotation function unlocking of the chair body is realized and the function unlocking of the chair body is disassembled, the positions of the first pin shaft 501 in the waist-shaped groove 23 are different, the unlocking of the two functions can be performed independently, and therefore, the mutual interference generated when the two functions are unlocked is prevented.

Optionally, as shown in fig. 20 to 23, the rotation release assembly 60 includes a rotation release block 601 and a rotation release elastic member 602, the rotation release block 601 is provided with a second pin 6013, the base 2 is provided with a hinge hole 22 connected to the second pin 6013 in a hinge manner, two ends of the rotation release elastic member 602 are respectively connected to the rotation release block 601 and the base 2, and the rotation release block 601 abuts against the tension/compression dual-purpose member 50; when the pulling and pressing dual-purpose member 50 is not pressed downward, the rotation release block 601 is locked with the rotating disk 3.

Wherein, the pulling and pressing dual-purpose piece 50 is provided with a poke rod which is obliquely arranged and is matched with the rotary unlocking block 601 for use; the second pin 6013 is disposed at the front end of the rotation release lock block 601, the rear end of the rotation release lock block 601 is locked with the rotation disc 3, the rotation release lock elastic member 602 is a compression spring, and the upper end of the rotation release lock elastic member 602 abuts against the lower surface of the rear end of the rotation release lock block 601, so that when the dual-purpose member 50 is pulled and pressed, the rear end of the rotation release lock block 601 can be firmly locked with the rotation disc 3 under the elastic force of the rotation release lock elastic member 602; when the dual-purpose pulling and pressing piece 50 is pressed, the dual-purpose pulling and pressing piece 50 can push the rotating unlocking block 601 to rotate around the second pin 6013, the rear end of the rotating unlocking block 601 can be separated from the rotating disk 3, the rotating unlocking of the rotating disk 3 is realized, and the function of rotating the chair body is realized.

Optionally, as shown in fig. 20 and 22, a plurality of mounting grooves 33 are formed at intervals on the edge of the rotating disk 3, and one of the mounting grooves 33 is selectively connected with the rotating unlocking block 601 in an inserting and locking manner. Set up the mounting groove 33 that a plurality of intervals set up for the chair body can the swivelling locking in a plurality of positions, releases locking piece 601 plug-in connection through mounting groove 33 and rotation and realizes the locking, and simple structure, and release locking piece 601 and receive to pull and press and deviate from in the mounting groove 33 smoothly when pressing of dual-purpose 50, the structure is reliable.

Optionally, as shown in fig. 20 to 25, the rotation releasing lock block 601 is provided with a relief groove 6012, so that the pull-press dual-purpose piece 50 is disengaged from the rotation releasing lock block 601 when the pull-press dual-purpose piece 50 is pulled forward.

When the rotation unlocking block 601 is locked with the rotating disk 3, the rotation unlocking block 601 is in an inclined state with a low front part and a high rear part, the abdication groove 6012 is arranged on the upper surface of the rotation unlocking block 601, the rear end of the pull-press dual-purpose piece 50 can just contact with or approach to the rear end position of the rotation unlocking block 601 when the pull-press dual-purpose piece 50 is in an initial state, so that when the pull-press dual-purpose piece 50 is moved forwards, the pull-press dual-purpose piece 50 which originally contacts with or approaches to the front end of the rotation unlocking block 601 can be separated from the rotation unlocking block 601 after moving forwards, and therefore, interference with the rotation unlocking block 601 is avoided when the unlocking chair body is detached, and the effectiveness and stability of unlocking are ensured.

Alternatively, as shown in fig. 23, the rotation release lock block 601 is provided with a projection 6011 abutting against the rear end of the dual purpose pulling and pressing member 50. The protrusion 6011 is disposed on the upper surface of the rotation releasing and locking block 601, and is disposed near the rear end of the rotation releasing and locking block 601, so as to ensure that the pulling and pressing dual-purpose element 50 can push the rotation releasing and locking block 601 to rotate around the second pin 6013, thereby increasing the rotation stroke.

Optionally, as shown in fig. 20 and 21, the dual-purpose device further includes a return elastic element 6, and two ends of the return elastic element 6 are respectively connected to the dual-purpose pulling and pressing element 50 and the base 2. The elastic restoring member 6 is a compression spring, and the length direction of the elastic restoring member 6 is consistent with the front-back direction, so that the user can withdraw the acting force to pull and press the dual-purpose member 50 and then automatically restore the dual-purpose member 50 to the initial state.

Alternatively, as shown in fig. 20 and 25, the release handle 4 is provided with an abutting step 45, and the front end of the dual pull/press member 50 is provided with an abutting surface 502, and when the dual pull/press member 50 is pulled forward, the abutting surface 502 abuts against the abutting step 45.

Wherein, the upper surface of the pull-press dual-purpose piece 50 is provided with a groove for placing the finger of the user, so that the user can smoothly pull the pull-press dual-purpose piece 50 forwards; when the pull-press dual-purpose piece 50 is in an initial state or when the pull-press dual-purpose piece 50 is pressed downwards, the abutting table 45 is not in contact with the abutting surface 502, interference generated when the two functions are unlocked is prevented, only when the pull-press dual-purpose piece 50 is pulled forwards, the abutting table 45 is in contact with the abutting surface 502, and under the thrust action of the abutting surface 502, the unlocking handle 4 moves forwards, so that unlocking of the chair body detaching function is completed.

Optionally, as shown in fig. 20 to fig. 29, the locking device includes a base 2 and a rotating plate 3 which are rotatably connected to each other, the base 2 is connected to a rotation unlocking block 601 which is locked to the rotating plate 3, the rotation unlocking block 601 is provided with a second pin 6013, the base 2 is provided with a hinge hole 22 which is hingedly connected to the second pin 6013, and when the rotation unlocking block 601 is pressed downward and rotates around the second pin 6013, the rotation unlocking block is disengaged from the rotating plate 3 to unlock the rotating plate 3.

The second pin shaft 6013 may be a shaft, and the hinge hole 22 may be a shaft hole, otherwise the second pin shaft 6013 may also be a shaft hole, and the hinge hole 22 is a shaft, and the hinge connection between the rotary unlocking block 601 and the base 2 is realized through the matching of the shaft and the shaft hole; the second pin 6013 is disposed at one end of the rotation unlocking block 601, the other end of the rotation unlocking block 601 is locked with the rotation plate 3 when not being pressed downward, and the other end of the rotation unlocking block 601 is separated from the rotation plate 3 when being pressed downward, so as to unlock the rotation of the rotation plate 3, that is, unlock the rotation function of the chair body.

The child safety seat with the linkage unlocking function in the embodiment is provided with the rotary unlocking block 601 hinged to the base 2 and locked with the rotary disk 3 through the rotary unlocking block 601, when the rotary unlocking block 601 is pressed downwards, the rotary unlocking block can be separated from the rotary disk 3 to unlock the rotary disk 3, and the child safety seat is simple in structure, few in parts and convenient to operate.

Alternatively, as shown in fig. 27, 28, and 29, the second pin 6013 is a pin, and the hinge hole 22 is a hinge hole. The hinge pin is arranged at the front end of the rotary unlocking block 601, the outer diameter of the hinge pin is close to the inner diameter of the hinge hole, the hinge pin can freely rotate in the hinge hole, the rotary unlocking block 601 is hinged to the base 2 through the cooperation of the hinge pin and the hinge hole, and the rotary unlocking block is simple and reliable in structure and convenient to assemble.

Optionally, as shown in fig. 28, a notch 60131 is disposed on the peripheral wall of the pin. The number of the notches 60131 is four, the four notches 60131 are symmetrically and uniformly arranged, the contact area between the pin shaft and the hinge hole can be reduced by arranging the notches 60131, and noise generated when the rotary unlocking block 601 rotates relative to the base 2 can be reduced.

Optionally, as shown in fig. 20 to fig. 29, the locking device further includes a rotation release elastic piece 602, and two ends of the rotation release elastic piece 602 are respectively connected to the rotation release block 601 and the base 2. The rotation release elastic member 602 is a compression spring, and the upper end of the rotation release elastic member 602 abuts against the lower surface of the rear end of the rotation release block 601, so that the rear end of the rotation release block 601 can be firmly locked with the rotation plate 3 under the elastic force of the rotation release elastic member 602 when not being pressed downward.

Optionally, as shown in fig. 20 and 26, a cylindrical column 24 is provided on the base 2, and the rotating disc 3 is provided with a mounting hole 34 matched with the cylindrical column 24. The middle position of the rotating disc 3 is provided with a mounting hole 34, the inner diameter of the mounting hole 34 is close to the outer diameter of the cylindrical column 24, when the rotating lock releasing block 601 is separated from the rotating disc 3, the cylindrical column 24 can freely rotate in the mounting hole 34, and the function of the chair body rotation is realized.

Alternatively, as shown in fig. 20 to 29, the rotating disc 3 is provided with a plurality of mounting slots 33 arranged at intervals, and a plurality of mounting slots 33 are selected to be connected with the rotating unlocking block 601 in an inserting and locking manner. Set up the mounting groove 33 that a plurality of intervals set up for the chair body can the swivelling locking in a plurality of positions, releases locking piece 601 plug-in connection through mounting groove 33 and rotation and realizes the locking, simple structure, and releases locking piece 601 and receive downward pressure effect at the rotation and deviate from in can following mounting groove 33 smoothly, and the structure is reliable.

Optionally, as shown in fig. 20 to fig. 29, the mounting groove 33 is an L-shaped groove, the rotation releasing block 601 is provided with an insertion portion 6014, and when the rotation releasing block 601 is locked with the rotation plate 3, an upper surface of the insertion portion 6014 is inserted into, abutted against, and connected to the L-shaped groove.

When the rotary unlocking block 601 is locked with the rotary disc 3, the inserting part 6014 is inserted into the L-shaped groove, and the upper surface of the inserting part 6014 is in butt fit with the part, perpendicular to the rotary plane of the rotary disc 3, of the L-shaped groove, so that the rotary unlocking block 601 can be firmly inserted into the rotary disc 3, the rotary unlocking block 601 can be smoothly separated from the mounting groove 33 of the rotary disc 3 when rotating downwards, interference with other parts of the mounting groove 33 is avoided, and unlocking is facilitated.

The rotary unlocking block 601 is arranged between the base 2 and the rotating disk 3, a rotary unlocking elastic piece 602 is arranged below the rotary unlocking block 601, and when the rotating disk 3 rotates to a set position, the rotary unlocking elastic piece 602 pushes the rotary unlocking block 601 to automatically reset and insert into a preset installation groove 33 on the rotating disk 3, so that the effect of rotary limiting and locking is achieved; when the rotary unlocking block 601 is pressed downwards by external force, the rotary unlocking block 601 rotates downwards around the base 2, the insertion part 6014 of the rotary unlocking block 601 inserted into the mounting groove 33 of the rotary disc 3 in advance automatically breaks away from the limiting position of the rotary unlocking block to achieve the unlocking and rotating functions, and when the rotary disc 3 rotates to another set position again, the rotary unlocking elastic part 602 pushes the rotary unlocking block 601 to automatically reset and insert into another mounting groove 33 preset on the rotary disc 3, so that the rotary limiting and locking functions can be achieved.

Optionally, as shown in fig. 25, a pull-press dual-purpose piece 50 movably connected to the base 2 is further included, and the pull-press dual-purpose piece 50 is used for pushing the rotation release block 601 downwards to rotate. The pulling and pressing dual-purpose piece 50 is preferably hinged to the base 2, the pulling and pressing dual-purpose piece 50 is provided with a poking rod which is obliquely arranged, and when a user presses the pulling and pressing dual-purpose piece 50 downwards, the rear end of the poking rod can push the rear end of the rotating and unlocking block 601 to rotate downwards around a pin shaft, so that the rotating and unlocking block 601 is separated from the rotating disc 3.

Optionally, as shown in fig. 25 and 28, the rotation release lock block 601 is provided with a projection 6011 abutting against the rear end of the dual purpose pulling and pressing member 50. The protrusion 6011 is disposed on the upper surface of the rotation releasing and locking block 601 and is disposed near the rear end of the rotation releasing and locking block 601, so as to ensure that the pulling and pressing dual-purpose member 50 can smoothly push the rotation releasing and locking block 601 to rotate around the pin, thereby increasing the rotation stroke.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.

Claims

1. The child safety seat with the linkage unlocking function is characterized by comprising a seat body (1), a base (2), a rotating disc (3), an unlocking handle (4) and a pulling and pressing dual-purpose piece (50), wherein the rotating disc (3) is rotatably connected with the base (2), the unlocking handle (4) and the pulling and pressing dual-purpose piece (50) are movably connected with the base (2), the base (2) is also movably connected with a rotating unlocking component (60) locked with the rotating disc (3), and the rotating unlocking component (60) and the unlocking handle (4) are movably connected with the pulling and pressing dual-purpose piece (50); the chair body (1) is provided with a front lock rod (11) and a rear lock rod (12), and the rotating disk (3) is movably connected with a front clamping hook (5) which is used for being locked and matched with the front lock rod (11) and a rear clamping hook (6) which is used for being locked and matched with the rear lock rod (12); the front hook unlocking assembly (7) used for driving the front hook (5) to unlock and the rear hook unlocking assembly (8) used for driving the rear hook (6) to unlock are further included, and the front hook unlocking assembly (7) and the rear hook unlocking assembly (8) are connected with the unlocking handle (4) in a linkage mode; when the pulling and pressing dual-purpose piece (50) is pulled to drive the unlocking handle (4) to unlock, the unlocking handle (4) drives the front hook unlocking component (7) and the rear hook unlocking component (8) to simultaneously act, so that the front hook unlocking component (7) drives the front clamping hook (5) and the rear hook unlocking component (8) drives the rear clamping hook (6) to simultaneously unlock the chair body (1).

2. The child safety seat with linkage release function according to claim 1, wherein the front hook release assembly (7) comprises a front hook release drive member (71) and a front hook locking limit rod (72) which are connected with each other, the release handle (4) is linked with the front hook release drive member (71), the front hook (5) is interlocked with the front lock rod (11), the front hook locking limit rod (72) is matched with the front hook (5) to limit the motion of the front hook (5), when the tension and compression dual-purpose member (50) is pulled to drive the release handle (4), the front hook release drive member (71) drives the front hook locking limit rod (72) to move so that the front hook locking limit rod (72) and the front hook (5) are separated from each other to release the front hook (5); the rear hook unlocking assembly (8) comprises a rear hook unlocking driving piece (81) and a rear hook locking limiting rod (82) which are connected with each other, the unlocking handle (4) is in linkage connection with the rear hook unlocking driving piece (81), when the rear hook (6) is interlocked with the rear lock rod (12), the rear hook locking limiting rod (82) is matched with the rear hook (6) to limit the action of the rear hook (6), and when the pulling and pressing dual-purpose piece (50) is pulled to drive the unlocking handle (4), the rear hook unlocking driving piece (81) drives the rear hook locking limiting rod (82) to move so that the rear hook locking limiting rod (82) and the rear hook (6) are separated from each other, so that the rear hook (6) is unlocked.

3. The child safety seat with the linked unlocking function according to claim 2, wherein the front hook unlocking driving piece (71) is provided with a front driving block (711), the rear hook unlocking driving piece (81) is provided with a rear driving block (811), the base (2) is hinged with a front hook unlocking block (9), the front hook unlocking block (9) is provided with a third pin shaft (91), an abutting block (92) and a front shifting block (93) hooked and connected with the front side of the front driving block (711), the front shifting block (93) and the abutting block (92) are respectively positioned at the upper side and the lower side of the third pin shaft (91), and the unlocking handle (4) is provided with a rear hook unlocking block (41) hooked and connected with the rear side of the rear driving block (811) and a slope (42) abutted against the rear side of the abutting block (92); when the pulling and pressing dual-purpose piece (50) is pulled to drive the unlocking handle (4) to move forwards, the rear hook unlocking block (41) moves to drive the rear driving block (811) to move forwards, and the slope (42) moves forwards to drive the front hook unlocking block (9) to rotate so that the front shifting block (93) turns backwards to realize that the front shifting block (93) drives the front driving block (711) to move backwards.

4. The child safety seat with linked release function according to claim 2, wherein the front hook release assembly (7) further comprises a front hook return elastic member (73), both ends of the front hook return elastic member (73) being connected to the front hook release driving member (71) and the rotating disc (3), respectively; the rear hook unlocking assembly (8) further comprises a rear hook resetting elastic piece (83), and two ends of the rear hook resetting elastic piece (83) are connected with the rear hook unlocking driving piece (81) and the rotating disc (3) respectively.

5. The child safety seat with the linked unlocking function according to claim 2, wherein the front hook unlocking driving piece (71) is provided with a front driving block (711), the rear hook unlocking driving piece (81) is provided with a rear driving block (811), the base (2) is movably connected with a first side unlocking piece (10) and a second side unlocking piece (20), the first side unlocking piece (10) is provided with a first side shifting block (101) in hooking connection with the front driving block (711), and the second side unlocking piece (20) is provided with a second side shifting block (201) in hooking connection with the rear driving block (811); when the pull-press dual-purpose piece (50) is pulled to drive the release handle (4) to move forwards, the first side shifting block (101) moves to drive the front driving block (711) to move leftwards, and the second side shifting block (201) moves to drive the rear driving block (811) to move rightwards.

6. The child safety seat with linked unlocking function according to claim 5, wherein the unlocking handle (4) is provided with a first cylinder (43) and a second cylinder (44), the first side unlocking piece (10) is provided with a first side inclined groove (102) in sliding fit with the first cylinder (43), the second side unlocking piece (20) is provided with a second side inclined groove (202) in sliding fit with the second cylinder (44), and the base (2) is provided with a guide rail (21) for the first side unlocking piece (10) and the second side unlocking piece (20) to slide left and right.

7. The child safety seat with linked unlocking function according to claim 2, wherein the front hook unlocking drive (71) is provided with a front chute (712), the rear hook unlocking drive (81) is provided with a rear chute (812), the rotating disc (3) is provided with a front vertical slot (31) corresponding to the position of the front chute (712) and a rear vertical slot (32) corresponding to the position of the rear chute (812); the front hook locking limiting rod (72) penetrates through the front chute (712) and the front vertical groove (31) and is in sliding connection with the front chute (712) and the front vertical groove (31), when the pull-press dual-purpose piece (50) is pulled to drive the unlocking handle (4), the front hook unlocking driving piece (71) drives the front hook locking limiting rod (72) to move from one end of the front vertical groove (31) to the other end, so that the front hook locking limiting rod (72) and the front hook (5) are separated from each other, and the front hook (5) is unlocked; the rear hook locking limiting rod (82) penetrates through the rear chute (812) and the rear vertical groove (32) and is in sliding connection with the rear chute (812) and the rear vertical groove (32), when the pull-press dual-purpose piece (50) is pulled to drive the unlocking handle (4), the rear hook unlocking driving piece (81) drives the rear hook locking limiting rod (82) to move from one end of the rear vertical groove (32) to the other end, so that the rear hook locking limiting rod (82) and the rear hook (6) are separated from each other, and the rear hook (6) is unlocked.

8. The child safety seat with linked unlocking function according to claim 7, wherein the front hook (5) is provided with a front locking groove (51) in locking fit with the front lock rod (11) and a front limit part (52) abutted against the front hook locking limit rod (72), the rear hook (6) is provided with a rear locking groove (61) in locking fit with the rear lock rod (12) and a rear limit part (62) abutted against the rear hook locking limit rod (82), and the front hook (5) and the rear hook (6) are both hinged to the rotary disk (3); the novel multifunctional rotating disk is characterized by further comprising a front clamping hook elastic piece (30) and a rear clamping hook elastic piece (40), wherein two ends of the front clamping hook elastic piece (30) are respectively connected with the front clamping hook (5) and the rotating disk (3), and two ends of the rear clamping hook elastic piece (40) are respectively connected with the rear clamping hook (6) and the rotating disk (3).

9. The child safety seat with linked release function according to claim 1, wherein the rotary release assembly (60) is disengaged from the rotary disc (3) to enable rotary release of the rotary disc (3) when the pull-press dual (50) is pressed downward; the base (2) is provided with a waist-shaped groove (23), the pulling and pressing dual-purpose piece (50) is provided with a first pin shaft (501) movably connected with the waist-shaped groove (23), when the pulling and pressing dual-purpose piece (50) is pressed downwards, the pulling and pressing dual-purpose piece (50) rotates around the first pin shaft (501), and the first pin shaft (501) is rotatably connected with the waist-shaped groove (23); when the pulling and pressing dual-purpose piece (50) is pulled forwards, the first pin shaft (501) moves forwards in the waist-shaped groove (23), and the first pin shaft (501) is connected with the waist-shaped groove (23) in a sliding mode; when the pull-press dual-purpose piece (50) needs to be pressed downwards to realize the rotation unlocking of the rotating disc (3), the first pin shaft (501) is abutted against the rear end of the waist-shaped groove (23).

10. The child safety seat with linked release function according to claim 9, wherein the release handle (4) is provided with an abutment (45), the front end of the pull-press dual-purpose member (50) is provided with an abutment surface (502), and when the pull-press dual-purpose member (50) is pulled forward, the abutment surface (502) abuts against the abutment (45); still include elastic component (6) that resets, the both ends of elastic component (6) that resets respectively with draw and press dual-purpose (50) with base (2) are connected.

11. The child safety seat with the linked unlocking function according to any one of claims 1 to 10, wherein the rotary unlocking assembly (60) comprises a rotary unlocking block (601) and a rotary unlocking elastic member (602), the rotary unlocking block (601) is provided with a second pin shaft (6013), the base (2) is provided with a hinge hole (22) in hinged connection with the second pin shaft (6013), two ends of the rotary unlocking elastic member (602) are respectively connected with the rotary unlocking block (601) and the base (2), and the rotary unlocking block (601) abuts against the tension and compression dual-purpose member (50); when the pulling and pressing dual-purpose piece (50) is not pressed downwards, the rotation unlocking block (601) is locked with the rotating disk (3); when the pulling and pressing dual-purpose piece (50) is pressed downwards, the rotating unlocking block (601) is pressed downwards and rotates around the second pin shaft (6013) to be separated from the rotating disc (3), and then the rotating unlocking of the rotating disc (3) is achieved.

12. The child safety seat with linked unlocking function according to claim 11, wherein a plurality of mounting slots (33) are formed at intervals on the edge of the rotating disc (3), and one of the mounting slots (33) is connected with the rotating unlocking block (601) in a plugging and locking manner; the rotary unlocking block (601) is provided with a yielding groove (6012) so that the pull-press dual-purpose piece (50) is separated from the rotary unlocking block (601) when the pull-press dual-purpose piece (50) is pulled forwards; the rotary unlocking block (601) is provided with a bulge (6011) which is abutted against the rear end of the tension and compression dual-purpose piece (50).