CN218172065U - Linkage structure for simultaneously unlocking front hook and rear hook and child safety seat - Google Patents

Abstract

The utility model provides a linkage structure for releasing the lock of a front hook and a rear hook simultaneously and a child safety seat, which comprises a base, a rotary disc and a lock releasing handle, wherein the rotary disc is movably connected with a front clamping hook and a rear clamping hook; the front hook unlocking assembly and the rear hook unlocking assembly are in linkage connection with the unlocking handle, when the unlocking handle is pulled to unlock, the unlocking handle drives the front hook unlocking assembly and the rear hook unlocking assembly to simultaneously act, and the front hook unlocking assembly drives the front hook and the rear hook unlocking assembly to drive the rear hook to simultaneously unlock. The utility model discloses a pulling release handle drives preceding hook release subassembly and the action of back hook release subassembly simultaneously, drives preceding pothook and back pothook and releases the lock simultaneously, and this kind of action through a pulling release handle realizes the structure that preceding pothook and back pothook linked the release lock simultaneously, simple structure, and spare part is few, and is with low costs, and the operation is also convenient.

Description

Linkage structure for simultaneously unlocking front hook and rear hook and child safety seat

Technical Field

The utility model relates to an automobile safety articles for use technical field particularly, relates to a front and back hook release linkage structure and children's safety seat simultaneously.

Background

A child safety seat is mounted on a car seat for seating a child, which can restrain the child when a car accident occurs. Child safety seats generally include a base and a basket or seat that is removably connected to the base, the basket being primarily intended for younger infants and the seat being primarily intended for 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.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one aspect of the above problems, the present invention firstly provides a simultaneous unlocking linkage structure for a front hook and a rear hook, which is suitable for being used in cooperation with a chair body, wherein the chair body is provided with a front lock rod and a rear lock rod, the simultaneous unlocking linkage structure for the front hook and the rear hook comprises a base, a rotary disk and an unlocking handle, the rotary disk and the unlocking handle are mounted on the base, and the rotary disk is movably connected with a front hook for locking and cooperating with the front lock rod and a rear hook for locking and cooperating with the rear lock rod; the front hook unlocking assembly and the rear hook unlocking assembly are connected with the unlocking handle in a linkage mode, when the unlocking handle is pulled to unlock, the unlocking handle drives the front hook unlocking assembly and the rear hook unlocking assembly to simultaneously act, and therefore the front hook unlocking assembly drives the front hook and the rear hook unlocking assembly to drive the rear hook to simultaneously unlock.

Optionally, the front hook release assembly includes a front hook release driving part and a front hook locking limiting rod which are connected with each other, the release handle is linked with the front hook release driving part, the front hook is interlocked with the front lock rod, the front hook locking limiting rod is matched with the front hook to limit the motion of the front hook, when the release handle is pulled, the front hook release driving part drives the front hook locking limiting rod to move so that the front hook locking limiting rod and the front hook are separated from each other, so as to release 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 unlocking handle is pulled, the rear hook unlocking driving piece drives the rear hook locking limiting rod to move so that the rear hook locking limiting rod and the rear clamping hook are separated from each other, 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 pin shaft, a butting block and a front shifting block hooked and connected with the front side of the front driving block, the front shifting block and the butting block are respectively located on the upper side and the lower side of the pin shaft, and the release handle is provided with a rear hook release lock block hooked and connected with the rear side of the rear driving block and a slope abutted against the rear side of the butting block; when the unlocking handle is pulled to move forwards, the rear hook unlocking block moves to drive the rear driving block to move forwards, and the slope moves forwards to drive the front hook unlocking block to rotate so that the front shifting block turns backwards to drive the front driving block to move backwards.

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 rotating disc is rotatably connected with the base, the front hook release driving piece is provided with a front driving block, the rear hook release driving piece 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 release handle is pulled 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 second side release piece horizontal slip's guide rail.

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 lock releasing handle is pulled, the front hook lock releasing 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 released; 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, and when the lock releasing handle is pulled, the rear hook lock releasing 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 the rear hook is released.

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 the front hook and the rear hook are both hinged to the rotary disk.

Optionally, the portable electronic device further comprises a front hook elastic piece and a rear hook elastic piece, two ends of the front hook elastic piece are respectively connected with the front hook and the rotating disk, and two ends of the rear hook elastic piece are respectively connected with the rear hook and the rotating disk.

Compared with the prior art, the utility model provides a front and back hook linkage structure of releasing simultaneously drives front hook release subassembly and back hook release subassembly action simultaneously through pulling release handle, drives front pothook and back pothook release lock simultaneously, and this kind of action through a pulling release handle realizes the structure that preceding pothook and back pothook linked release lock simultaneously, simple structure, and spare part is few, and is with low costs, and the operation is also convenient.

In addition, the utility model provides a child safety seat, include as above the linkage structure is released simultaneously to front and back hook.

Compared with the prior art, child safety seat with the aforesaid hook release linkage structure simultaneously around with the aforesaid is the same for the advantage that prior art has, no longer gives unnecessary details here.

Drawings

Fig. 1 is a partial exploded view of a simultaneous unlocking linkage structure for front and rear hooks according to an embodiment of the present invention;

FIG. 2 is a second partial exploded view of the simultaneous unlocking linkage structure of the front and rear hooks according to the 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 structural view of the assembly of the unlocking handle with the first side unlocking member and the second side unlocking member according to the embodiment of the present invention;

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

fig. 6 is a partial structure view of the simultaneous unlocking linkage structure of the front and rear hooks according to the embodiment of the present invention;

FIG. 7 is a partial structural view of the simultaneous unlocking linkage structure of the front and rear hooks according to the embodiment of the present invention;

fig. 8 is a cross-sectional view of the simultaneous front and rear hook unlocking linkage structure according to the 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 sectional view of the simultaneous unlocking linkage structure of the front and rear hooks according to the embodiment of the present invention;

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

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

fig. 14 is a cross-sectional view of the simultaneous front and rear hook release linkage of the embodiment of the present invention when the rotating disk is rotated to the 90 ° position and locked;

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 sectional view of the simultaneous front and rear hook unlocking linkage structure according to the embodiment of the present invention when the rotating disk rotates to a 90 ° position and the lock is unlocked;

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

fig. 19 is an enlarged view of a portion H in fig. 17.

Description of reference numerals:

1. a chair body; 11. a front lock lever; 12. a rear lock lever; 2. a base; 21. a guide rail; 3. rotating the disc; 31. a front vertical slot; 32. a rear vertical groove; 4. a lock releasing handle; 41. the rear hook releases the locking block; 42. a slope; 43. a first cylinder; 44. a second cylinder; 5. a front hook; 51. a front lock groove; 52. a front stopper; 6. a rear hook; 61. a rear lock groove; 62. a rear limiting part; 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 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. the back hook elastic component.

Detailed Description

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

In the description of the present invention, it should be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on normal use of the 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 implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. The utility model discloses a be provided with coordinate system XYZ in the drawing of embodiment, wherein the forward of X axle represents the left, and the reverse of X axle represents right-hand, and the forward of Y axle represents the place ahead, and the reverse rear that represents of Y axle, the forward of Z axle represents the top, and the reverse below that represents of Z axle.

The embodiment of the utility model provides a front and back hook linkage structure that unlocks simultaneously is suitable for and uses with chair body 1 cooperation, combines shown in fig. 1 to 19, chair body 1 is equipped with front locking lever 11 and back locking lever 12, front and back hook linkage structure that unlocks simultaneously includes base 2 and install in rotary disk 3 and the unlocking handle 4 of base 2, rotary disk 3 swing joint be used for with front locking lever 11 lock complex preceding pothook 5 with be used for with back locking lever 12 lock complex back pothook 6; the front hook unlocking assembly 7 and the rear hook unlocking assembly 8 are both linked with the unlocking handle 4, when the unlocking handle 4 is pulled to unlock, the unlocking handle 4 drives the front hook unlocking assembly 7 and the rear hook unlocking assembly 8 to simultaneously act, and the front hook unlocking assembly 7 drives the front hook 5 and the rear hook unlocking assembly 8 drives the rear hook 6 to simultaneously unlock.

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 in hinged connection in a mutual movable connection mode, the front hook 5 and the rotary disk 3 are in hinged connection through structural matching of a shaft and a shaft hole, and locking or unlocking with the front lock rod 11 is realized through the rotation action of the front hook 5; in a similar way, the mode that the rear hook 6 is movably connected with the rotary disk 3 is preferably hinged connection, the rear hook 6 is hinged connected with the rotary disk 3 through the structural matching of a shaft and a shaft hole, and the rear hook 6 is locked or unlocked with the rear lock rod 12 through the rotation action; 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 locking or unlocking with the front lock rod 11 is realized by the translational motion of the front hook 5, and the locking or unlocking with the rear lock rod 12 is realized by the translational motion of the rear hook 6.

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 infant and the young can take the car; 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 linkage structure for simultaneously releasing the front hook and the rear hook in the embodiment, the front hook release assembly 7 and the rear hook release assembly 8 are driven to simultaneously release the lock by pulling the release handle 4, so that the front clamping hook 5 and the rear clamping hook 6 are driven to simultaneously release the lock, and the structure for simultaneously releasing the lock by pulling the release handle 4 to realize the linkage of the front clamping hook 5 and the rear clamping hook 6 is simple in structure, few in parts, low in cost and convenient and fast to operate.

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 piece 81 and a rear hook locking limiting rod 82 which are connected with each other, the release handle 4 is linked with the rear hook release 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, when the release handle 4 is pulled, the rear hook release 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 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 applies force on the release handle 4 to pull the release handle 4 to move forwards, the release handle 4 drives the front hook release driving piece 71 and the rear hook release driving piece 81 to move simultaneously, the front hook release 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 release 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 simultaneously released, 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 a front hook release locking block 9, the front hook release locking block 9 is provided with a pin shaft 91, a butting 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 butting block 92 are respectively located at the upper side and the lower side of the 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 butting 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 pin shaft 91 is horizontally arranged, the base 2 is provided with a through hole matched with the 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 the front and high in the rear, 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 hooking connection with the front shifting block 93, and the rear driving block 811 is in hooking 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 respectively unlock the front hook 5 and the rear hook 6, the structure is simple, and the operation is convenient.

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 driving member 71 is provided with a front inclined groove 712, the rear hook release driving member 81 is provided with a rear inclined groove 812, and the rotating disk 3 is provided with a front vertical groove 31 corresponding to the position of the front inclined groove 712 and a rear vertical groove 32 corresponding to the position of the rear inclined groove 812; the front hook locking and limiting rod 72 penetrates through the front inclined groove 712 and the front vertical groove 31 and is slidably connected with the front inclined groove 712 and the front vertical groove 31, when the locking release handle 4 is pulled, the front hook locking and limiting rod 72 is driven by the front hook locking and limiting driving piece 71 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 locking of the front hook 5 is realized; 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 slot 31, and the rear vertical slot 32 all have a length such that the front hook lock limit rod 72 can slide within the front chute 712 and the front vertical slot 31 and the rear hook lock limit rod 82 can slide within the rear chute 812 and the rear vertical slot 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, so as 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 release handle 4 is pulled, the rear hook release driving part 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 acting 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 release of the rear hook 6 is realized.

Optionally, as shown in fig. 1 to fig. 19, the front hook 5 is provided with a front locking slot 51 in locking engagement with the front lock rod 11 and a front stopper 52 in abutment with the front hook locking stopper 72, the rear hook 6 is provided with a rear locking slot 61 in locking engagement with the rear lock rod 12 and a rear stopper 62 in abutment with the rear hook locking stopper 82, and both the front hook 5 and the rear hook 6 are connected to the rotary disk 3 in an articulated manner.

Wherein, the quantity of preceding pothook 5 and back pothook 6 is two, and two preceding pothooks 5 interval sets up and lock with preceding locking lever 11 jointly, and two back pothooks 6 interval sets up and lock with preceding locking lever 11 jointly and be connected for chair body 1 can be firmly locked.

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 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 synchronously drives the front hook locking limiting rod 72 to move so that the front hook locking limiting rod 72 and the front limiting part 52 are separated from each other, 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 and the rear limiting part 62 are separated from each other, 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 are unlocked simultaneously, 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 limit rod 82 is separated from the rear limit part 62, the rear hook 6 enables the rear locking groove 61 to rotate backward under the force of the rear hook elastic piece 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, so as to disassemble the lower chair body 1.

Optionally, 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 drive 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 disk 3 is rotatably connected to the base 2, 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 movably connected with a first side release member 10 and a second side release member 20, the first side release member 10 is provided with a first side shifting block 101 hooked to the front driving block 711, and the second side release member 20 is provided with a second side shifting block 201 hooked to 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 left, and the second side shifting block 201 moves to drive the rear driving block 811 to move right.

Wherein, the middle part of the base 2 is provided with a cylinder, the middle part of the rotating disk 3 is provided with a rotating hole, and the base 2 and the rotating disk 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 on 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 locking of the front hook 5 and the rear hook 6 when the rotating disc 3 rotates to a 90-degree position relative to the base 2 are realized, the structure is simple and reliable, and the operation is convenient.

When the rotating disk 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 release handle 4 to pull the release handle 4 to move forward, 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 limit rod 82 to move so as to separate the rear hook locking limit rod 82 from the rear hook 6, and the front driving block 711 moves to drive the front hook locking limit rod 72 to move so as to separate the front hook locking limit rod 72 from the front hook 5, so that the front hook 5 and the rear hook 6 are simultaneously locked, 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 groove 102 slidably engaged with the first cylindrical column 43, the second side release 20 is provided with a second side inclined groove 202 slidably engaged with the second cylindrical column 44, and the base 2 is provided with a guide rail 21 for sliding the first side release 10 and the second side release 20 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 diagonal slot 102 is similar to the outer diameter of the first cylinder 43 and the width of the second side diagonal slot 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 realize left movement, 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 to realize right movement, so that the rear hook unlocking driving piece 81 is also driven to move right, and finally the rear hook 6 is unlocked.

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

Another embodiment of the present invention provides a child safety seat, comprising the front and rear hooks simultaneously releasing and locking linkage structure as described above.

In the child safety seat in the embodiment, the front hook unlocking component 7 and the rear hook unlocking component 8 are simultaneously driven to move by pulling the unlocking handle 4, so that the front hook 5 and the rear hook 6 are simultaneously unlocked, and the structure for simultaneously linkage unlocking of the front hook 5 and the rear hook 6 is realized by one motion of pulling the unlocking handle 4, so that the child safety seat is simple in structure, less in parts, low in cost and convenient and fast to operate.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications are intended to fall within the scope of the disclosure.

Claims (10)

1. The simultaneous front-and-back hook unlocking linkage structure is suitable for being matched with a chair body (1) for use, and is characterized in that the chair body (1) is provided with a front lock rod (11) and a back lock rod (12), the simultaneous front-and-back hook unlocking linkage structure comprises a base (2), a rotary disk (3) and an unlocking handle (4) which are installed on the base (2), and the rotary 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 back clamping hook (6) which is used for being locked and matched with the back lock rod (12); the front hook unlocking assembly (7) and the rear hook unlocking assembly (8) are used for driving the front clamping hook (5) to unlock, the front hook unlocking assembly (7) and the rear hook unlocking assembly (8) are in linkage connection with the unlocking handle (4), when the unlocking handle (4) is pulled to unlock, the unlocking handle (4) drives the front hook unlocking assembly (7) and the rear hook unlocking assembly (8) to simultaneously act, and the front hook unlocking assembly (7) drives the front clamping hook (5) and the rear hook unlocking assembly (8) to drive the rear clamping hook (6) to simultaneously unlock.

2. The simultaneous front and rear hook release linkage structure according to claim 1, wherein the front hook release assembly (7) comprises a front hook release driving member (71) and a front hook lock limiting rod (72) which are connected with each other, the release handle (4) is linked with the front hook release driving member (71), the front hook (5) is interlocked with the front lock rod (11), the front hook lock limiting rod (72) is matched with the front hook (5) to limit the action of the front hook (5), when the release handle (4) is pulled, the front hook release driving member (71) drives the front hook lock limiting rod (72) to move so that the front hook lock limiting rod (72) and the front hook (5) are separated from each other, and the front hook (5) is released; 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 unlocking handle (4) is pulled, 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, and the rear hook (6) is unlocked.

3. The simultaneous front and rear hook unlocking linkage structure according to claim 2, wherein the front hook unlocking drive member (71) is provided with a front drive block (711), the rear hook unlocking drive member (81) is provided with a rear drive block (811), the base (2) is hinged with a front hook unlocking block (9), the front hook unlocking block (9) is provided with a pin shaft (91), an abutting block (92) and a front shifting block (93) hooked and connected with the front side of the front drive 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 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 drive block (811) and a slope (42) abutted against the rear side of the abutting block (92); when the release handle (4) is pulled to move forwards, the rear hook release lock block (41) moves to drive the rear driving block (811) to move forwards, and the slope (42) moves forwards to drive the front hook release lock 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. A simultaneous front and rear hook release linkage 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 disk (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 respectively connected with the rear hook unlocking driving piece (81) and the rotating disc (3).

5. The simultaneous front and rear hook unlocking linkage structure according to claim 2, wherein the rotary plate (3) is rotatably connected with the base (2), the front hook unlocking driving member (71) is provided with a front driving block (711), the rear hook unlocking driving member (81) is provided with a rear driving block (811), the base (2) is movably connected with a first side unlocking member (10) and a second side unlocking member (20), the first side unlocking member (10) is provided with a first side shifting block (101) which is in hooking connection with the front driving block (711), and the second side unlocking member (20) is provided with a second side shifting block (201) which is in hooking connection with the rear driving block (811); when the unlocking handle (4) is pulled 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 simultaneous front and rear hook unlocking linkage structure 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) which is in sliding fit with the first cylinder (43), the second side unlocking piece (20) is provided with a second side inclined groove (202) which is in sliding fit with the second cylinder (44), and the base (2) is provided with a guide rail (21) for the left and right sliding of the first side unlocking piece (10) and the second side unlocking piece (20).

7. A simultaneous front and rear hook unlocking linkage structure according to any one of claims 2 to 6, wherein the front hook unlocking drive member (71) is provided with a front chute (712), the rear hook unlocking drive member (81) is provided with a rear chute (812), 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 limiting rod (72) penetrates through the front inclined groove (712) and the front vertical groove (31) and is in sliding connection with the front inclined groove (712) and the front vertical groove (31), when the unlocking handle (4) is pulled, 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 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 lock releasing handle (4) is pulled, the rear hook locking 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 clamping hook (6) are separated from each other, and the rear clamping hook (6) is released.

8. The simultaneous front and rear hook release linkage structure according to claim 7, wherein the front hook (5) is provided with a front lock groove (51) in locking engagement with the front lock lever (11) and a front limit portion (52) in abutment with the front hook locking limit lever (72), the rear hook (6) is provided with a rear lock groove (61) in locking engagement with the rear lock lever (12) and a rear limit portion (62) in abutment with the rear hook locking limit lever (82), and the front hook (5) and the rear hook (6) are both hingedly connected to the rotary disk (3).

9. The simultaneous front and rear hook unlocking linkage structure according to claim 8, further comprising a front hook elastic member (30) and a rear hook elastic member (40), wherein both ends of the front hook elastic member (30) are respectively connected to the front hook (5) and the rotating disk (3), and both ends of the rear hook elastic member (40) are respectively connected to the rear hook (6) and the rotating disk (3).

10. A child safety seat comprising the simultaneous front-rear hook release linkage of any one of claims 1-9.

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