CN104816751B - Cradle head and the baby seat pocket with which - Google Patents

Abstract

The invention discloses a swivel joint and a child seat with the swivel joint, wherein the child seat using the swivel joint can be stably in an unfolded state during use. When the child seat is unfolded and used, it can also be conveniently shifted to meet the different needs of users; when the child seat is not in use, the rods connected by rotating joints on the child seat can be connected to each other. Rotate and close together to realize the folding of the child seat. The folded structure is very compact and flat, which brings convenience for the user to carry and store.

Description

Swivel joint and child seat with same

technical field

The invention relates to a rotary joint and a seat for children with the same.

Background technique

In the prior art, a child's seat includes upper and lower bars that are arranged to form a closed frame. The frame is provided with a front armrest or a front tray, and is used to graft the child's seat to children's products such as strollers. interface rack. In the prior art, the gear position cannot be adjusted when the child seat is unfolded for use, so that the user cannot adjust the use state of the seat according to the use requirements. In addition, the child seat in the prior art is usually not foldable, which leads to a large volume of the seat, which brings inconvenience to storage, carrying and transportation.

Contents of the invention

The purpose of the present invention is to overcome the disadvantages of the prior art and provide a rotary joint.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A rotary joint, comprising three support rods connected in rotation, and a locking mechanism for locking the three support rods, wherein one of the support rods is a base rod with a base portion, and the other two support rods are The rods are respectively a first rod with a first connection part and a second rod with a second connection part, the first connection part and the second connection part are respectively rotatably connected to the base part, and the first connection The first rotation centerline around which the part rotates relative to the base part and the second rotation centerline around which the second connecting part rotates relative to the base part extend parallel or collinearly to each other, and the locking The mechanism includes a slider slidably arranged on the base part, the sliding direction of the slider is perpendicular to the extension direction of the first rotation centerline and the second rotation centerline, and the slider is provided with a On the first lock tongue matched with the first connecting part and the second lock tongue used to match the second connecting part, the first connecting part is provided with the first lock tongue When the slider slides relative to the base part, the first lock groove is correspondingly snapped into, communicates with the first lock groove, and allows the first lock tongue to connect between the first connecting part and the first lock groove. The base part is slidably inserted into the first chute when the base part is relatively rotated, and the second connecting part is provided with a plurality of corresponding locking bolts for the second locking tongue when the slider slides relative to the base part. The second lock slots are snapped in, and a plurality of the second lock slots are distributed at intervals on the circumference where the second rotation center line is the rotation center, and the second connecting part is also provided with the second lock slots. The shifting chute and the second chute are connected and can be slidably inserted by the second locking tongue when the second connecting part and the base part rotate relative to each other, the locking mechanism has a locked state, a half An unlocked state and an unlocked state, when the locking mechanism is in the locked state, the first lock tongue is engaged in the first lock slot, and the second lock tongue is engaged in one of the second lock slots Among them, the first connecting part, the second connecting part and the base part are fixed to each other; when the locking mechanism is in the semi-unlocked state, at least part of the first bolt is stuck in the first lock The first connecting part and the base part are fixed in the groove, the second locking tongue is disengaged from the second locking groove and located in the shift slide, and the second connecting part can Rotate relative to the base part; when the locking mechanism is in the unlocked state, the first lock tongue is disengaged from the first lock groove and is located in the first sliding groove, and the second lock tongue is from the The second lock slot is disengaged from and located in the second sliding slot, and the first connecting part and the second connecting part can respectively rotate relative to the base part.

Preferably, the first connecting portion and the second connecting portion are respectively located on two different sides of the base portion, and correspondingly, the first locking tongue and the second locking tongue are respectively located on the sliding Blocks on opposite sides of the slider.

Further, the base part is provided with a guide groove that can accommodate the slider and allow the slider to slide and guide along perpendicular to the first rotation centerline and the second rotation centerline, the slider slidingly arranged in the guide groove.

Further, the base part, the first connecting part and the second connecting part are rotatably connected by a rotating shaft, and the slider is provided with a guide hole through which the rotating shaft can pass in the axial direction. The rotating shaft axially passes through the guide hole and is rotatably connected with the first connecting portion and the second connecting portion.

Furthermore, the first chute is an arc-shaped groove with the axis of the rotating shaft as the center line of rotation, and the first locking groove is located on the radially outer side of the first chute; the shift sled Both the groove and the second chute are arc-shaped grooves with the axis of the rotating shaft as the center line of rotation, the second locking groove is located radially outside the shift chute, and the second chute is located The radial inner side of the shift slide.

Furthermore, the rotary joint further includes a third rod with a third connecting portion, the third connecting portion is rotationally connected to the base portion through the rotating shaft, when the locking mechanism is in the locked state or in the In the semi-unlocked state, the third connecting part is fixed relative to the base part and the first connecting part; The connecting part rotates around the rotating shaft.

Further, the third connecting part is provided with a first arc-shaped groove and a second arc-shaped groove with the axis of the rotating shaft as the center line of rotation, and the first connecting part is provided with a To the first limiting pin inserted into the first arc-shaped slot and sliding along the first arc-shaped slot when the first connecting part rotates relative to the third connecting part, the base part is provided with There is a second limit pin that can be inserted into the second arc-shaped slot axially and slide along the second arc-shaped slot when the base part rotates relative to the third connecting part.

Furthermore, the third connecting portion and the base portion are respectively located on opposite sides of the first connecting portion, and there is provided on the first connecting portion for the second limit pin to move along the axis. The third arc-shaped slot passing through, the second limit pin passes through the third arc-shaped slot in the axial direction and is inserted into the second arc-shaped slot, when the base part and the first arc-shaped slot When a connecting portion rotates relatively, the second limiting pin relatively slides along the third arc-shaped groove.

Another object of the present invention is to provide a child's seat with the above-mentioned rotating joint, so as to realize multi-position adjustable use of the child's seat and the folding of the seat.

In order to achieve the above object, the technical solution adopted by the present invention is: a child seat, at least including an upper surrounding bar, a lower surrounding bar and an interface frame connected in rotation, and the upper surrounding bar, the lower surrounding bar and the interface frame Rotationally connected by the above-mentioned rotary joint, wherein, the base part is arranged on one part of the upper wall rod and the lower wall rod, and the first connecting part is arranged on the upper wall rod and the lower wall rod. On the other part of the rod, the second connecting part is arranged on the interface frame.

In order to achieve the above object, another technical solution adopted by the present invention is: a child seat, at least including an upper surrounding rod, a lower surrounding rod, an interface frame and a front attachment connected in rotation, the upper surrounding rod, the lower surrounding rod . The interface frame and the front accessory are rotatably connected by the above-mentioned rotary joint, wherein the base part is arranged on one part of the upper wall rod and the lower wall rod, and the first connecting part It is arranged on the other part of the upper wall rod and the lower wall rod, the second connecting part is arranged on the interface frame, and the third connecting part is arranged on the front accessory.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: on the child seat using the above-mentioned rotary joint, the child seat can be stably in an unfolded state when in use. When the child seat is unfolded and used, it can also be conveniently shifted to meet the different needs of users; when the child seat is not in use, the rods connected by rotating joints on the child seat can be connected to each other. Rotate and close together to realize the folding of the child seat. The folded structure is very compact and flat, which brings convenience for the user to carry and store.

Description of drawings

Accompanying drawing 1 is the exploded schematic diagram 1 of the structure of the child's seat bag of an embodiment of the present invention;

Accompanying drawing 2 is the enlarged schematic view of part A in the accompanying drawing 1, that is, the structural decomposition schematic diagram 1 of the rotary joint;

Accompanying drawing 3 is the structural exploded schematic diagram II of the child seat pocket of accompanying drawing 1;

Accompanying drawing 4 is the enlarged schematic diagram of part B in accompanying drawing 3, that is, the structural decomposition schematic diagram 2 of the rotary joint;

Accompanying drawing 5 is the side view of the child's seat pocket of accompanying drawing 1 in the unfolded state;

Accompanying drawing 6 is a schematic diagram of the internal structure at C in accompanying drawing 5, wherein the locking mechanism is in a locked state;

Accompanying drawing 7 is a schematic diagram of the internal structure at C in accompanying drawing 5, wherein the locking mechanism is in a locked state;

Accompanying drawing 8 is a schematic diagram of the internal structure at C in accompanying drawing 5, wherein the locking mechanism is in a half-unlocked state;

Accompanying drawing 9 is a schematic diagram 4 of the internal structure at C in accompanying drawing 5, wherein the locking mechanism is in a semi-unlocked state;

Accompanying drawing 10 is the side view of the child seat of the accompanying drawing 5 when it is deployed in another gear;

Accompanying drawing 11 is the enlarged schematic diagram of part D in accompanying drawing 10;

Accompanying drawing 12 is the side view when the child seat of drawing 5 is deployed in another gear;

Accompanying drawing 13 is a schematic diagram of the internal structure at C in accompanying drawing 5, wherein the locking mechanism is in an unlocked state;

Accompanying drawing 14 is a schematic diagram of the internal structure at C in accompanying drawing 5, wherein the locking mechanism is in an unlocked state;

Accompanying drawing 15 is the side view schematic diagram 1 of the child seat in the half-folded state after the rotary joint is unlocked;

Accompanying drawing 16 is the second schematic side view of the child seat in a half-folded state after the rotary joint is unlocked;

Accompanying drawing 17 is the enlarged schematic diagram of part E in accompanying drawing 16;

Accompanying drawing 18 is the side view schematic diagram 3 of the child seat in the half-folded state after the rotary joint is unlocked;

Accompanying drawing 19 is the enlarged schematic diagram of part F in accompanying drawing 18;

Accompanying drawing 20 is a schematic side view of a child seat in a folded state;

Accompanying drawing 21 is the schematic front view of the child seat in the folded state;

Among them: 100, base rod (upper rod); 200, first rod (lower rod); 300, second rod (interface frame); 400, third rod (front attachment/front armrest);

1. Base part; 11. Guide groove; 12. Second limit pin;

2. The first connecting part; 21. The first lock groove; 22. The first chute; 23. The first limit pin; 24. The third arc groove;

3. The second connecting part; 31. The second lock groove; 32. The shift chute; 33. The second chute;

4. The third connecting part; 41. The first arc-shaped groove; 42. The second arc-shaped groove;

5. Slider; 51. First deadbolt; 52. Second deadbolt; 53. Guide hole;

6. Rotating shaft.

detailed description

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Referring to the child seat shown in Figures 1 to 21, the child seat at least includes an upper girdle 100, a lower girth 200, an interface frame 300 and a front attachment 400, wherein the front attachment 400 can be a front armrest or a front tray, here , the front attachment 400 is the front armrest. The upper wall rod 100, the lower wall rod 200, the interface frame 300 and the front attachment 400 are rotatably connected through the rotating joint, and the rotation joint is also provided with a locking mechanism for locking the upper wall rod 100, the lower wall rod 200, the interface frame 300 and the front attachment 400. the locking mechanism. The rotary joint includes a base part 1 arranged at the lower part of the upper wall bar 100 , a first connecting part 2 arranged at the upper part of the lower wall bar 200 , a second connecting part 3 arranged on the interface frame 300 , and arranged on the front attachment 400 . The third connection part 4, the base part 1, the first connection part 2, the second connection part 3, and the third connection part 4 are rotatably connected and can be locked by a locking mechanism.

Referring to Figures 1 to 4, the first connecting part 2 and the second connecting part 3 are respectively rotatably connected to the base part 1, and the first rotating centerline around which the first connecting part 2 rotates relative to the base part 1 , The second rotation centerlines around which the second connecting portion 3 rotates relative to the base portion 1 extend parallel to each other or collinearly. The locking mechanism includes a sliding block 5 slidably disposed on the base part 1 , and the sliding direction of the sliding block 5 on the base part 1 is perpendicular to the extending direction of the first rotation centerline and the second rotation centerline.

The slider 5 is provided with a first deadbolt 51 for matching with the first connecting part 2 and a second deadbolt 52 for matching with the second connecting part 3. A lock tongue 51 corresponds to the first lock slot 21 that is inserted into when the slider 5 slides relative to the base portion 1 , allowing the first lock tongue 51 to slide when the first connecting portion 2 and the base portion 1 rotate relative to each other. Inserted into the first sliding slot 22 , the first lock slot 21 communicates with the first sliding slot 22 . The second connecting part 3 is provided with a plurality of second lock slots 31 for the second lock tongue 52 to snap into when the slider 5 slides relative to the base part 1. The line is distributed at intervals on the circumference of the rotation center, and the second connecting part 3 is also provided with a second lock groove 31 that communicates with the second lock groove 31 and allows the second lock tongue 52 to slide when the second connecting part 3 and the base part 1 rotate relative to each other. The shift chute 32 and the second chute 33 are inserted in the ground, wherein the shift chute 32 provides a sliding guide for the second lock tongue 52 when switching in different second lock grooves 31, the shift chute 32, the second The slide slot 33 communicates with the second lock slot 31 .

In this embodiment, the first connecting portion 2 and the second connecting portion 3 are respectively located on different sides of the base portion 1 , and correspondingly, the first locking tongue 51 and the second locking tongue 52 are respectively located on two sides of the slider 5 . different sides. The base part 1 is provided with a guide groove 11 that can accommodate the slider 5 and can slide and guide the slider 5 along perpendicular to the first rotation center and the second rotation centerline, and the slider 5 is slidably arranged in the guide groove 11 middle. Here, the slider 5 has a locking end, and the first lock tongue 51 and the second lock tongue 52 are both disposed on the lock end and located on two different sides of the lock end.

In this embodiment, the base part 1 , the first connecting part 2 , and the second connecting part 3 are rotatably connected by the rotating shaft 6 , that is, the first rotating centerline and the second rotating centerline are the axis lines of the rotating shaft 6 . The slider 5 defines a guide hole 53 through which the rotating shaft 6 passes in the axial direction. The rotating shaft 6 passes through the guiding hole 53 in the axial direction and rotatably connects the first connecting part 2 and the second connecting part 3 . When the slider 5 slides along the guide groove 11 , the rotating shaft 6 slides relatively in the guide hole 53 .

Referring to Fig. 1 to Fig. 4, on the first connecting part 2, the first chute 22 is an arc-shaped groove with the axis of the rotating shaft 6 as the center line of rotation, and the first locking groove 21 is located in the first chute 22 radially outer side. On the second connecting part 3, the shift chute 32 and the second chute 33 are arc-shaped grooves with the axis of the rotating shaft 6 as the center line of rotation, and the second locking groove 31 is located on the radially outer side of the shift chute 32 , and the second chute 33 is located on the radial inner side of the shift chute 32, that is, on the second connecting portion 3, the second lock groove 31, the shift chute 32, and the second chute 33 are along the diameter of the rotating shaft 6. The directions are distributed sequentially from outside to inside. In this embodiment, there are three second locking slots 31 , so that there are three locking positions between the second connecting portion 3 and the base portion 1 .

Referring to FIG. 1 to FIG. 4 , the third connecting part 4 on the front attachment 400 is also rotatably connected to the base part 1 through the rotating shaft 6 . In this embodiment, the third connecting portion 4 is disposed on one side of the first connecting portion 2 , and the base portion 1 and the third connecting portion 4 are respectively located on two different sides of the first connecting portion 2 . The third connecting part 4 is provided with a first arc-shaped groove 41 and a second arc-shaped groove 42 with the axis of the rotating shaft 6 as the center line of rotation, and the first connecting part 2 is provided with a first stopper pin 23, The first limiting pin 23 can be axially inserted into the first arc-shaped slot 41 , and when the first connecting portion 2 rotates relative to the third connecting portion 4 , the first limiting pin 23 slides along the first arc-shaped slot 41 . The base part 1 is provided with a second limit pin 12, and the first connecting part 2 is provided with a third arc-shaped groove 24, the third arc-shaped groove 24 takes the axis line of the rotating shaft 6 as the center line of rotation, and the second The limit pin 12 is inserted into the third arc-shaped groove 24 in the axial direction and then inserted into the second arc-shaped groove 42. When the third connecting part 4 rotates relative to the base part 1, the second limit pin 12 moves along the second arc-shaped groove. The slot 42 and the third arc-shaped slot 24 slide. When the first limiting pin 23 and the second limiting pin 12 restrict the rotation of the third connecting portion 4 in opposite directions, the third connecting portion 4 cannot rotate.

The locking mechanism on the rotary joint has a locked state, a half-unlocked state and an unlocked state, as follows:

When the locking mechanism is in the locked state, as shown in Fig. 1, Fig. 2, and Fig. 5 to Fig. 7, the first lock tongue 51 is stuck in the first lock groove 21, and the second lock tongue 52 is stuck in it. In a second locking groove 31, the first connecting part 2, the second connecting part 3 and the base part 1 are fixed to each other, so that the upper wall rod 100, the lower wall rod 200, and the interface frame 300 are mutually locked, and in the first limit The pin 23 is in the first arc-shaped groove 41, and the second limit pin 12 is in the second arc-shaped groove 42 to form a limit to the third connecting part 4, so that the third connecting part 4 cannot rotate, and then the front attachment 400 is locked relative to the upper wall rod 100 and the lower wall rod 200 .

When it is necessary to convert the locking mechanism to the semi-unlocked state, as shown in Fig. 8 and Fig. 9, the slider 5 is driven to slide along the guide groove 11 toward the rotating shaft 6, so that the second lock tongue 52 falls into the shift chute 32, and the second lock tongue 52 falls into the shift slide groove 32. The two connecting parts 3 are relatively rotatable relative to the base part 1, and at this moment, at least part of the first lock tongue 51 is engaged in the first lock groove 21 so that the first connecting part 2 and the base part 1 are fixed to each other. In this way, The upper surrounding rod 100, the lower surrounding rod 200 and the front attachment 400 are all fixed to each other and cannot be rotated. This state is the semi-unlocked state of the locking mechanism. At this time, as shown in Fig. 10 and Fig. 11, after the base part 1 and the second connecting part 3 are rotated by a certain angle, the slider 5 is slid along the guide groove 11 away from the rotating shaft 6, so that the second locking tongue 52 Falling into another second lock groove 31 corresponding to the angular position, at this time, the first lock tongue 51 is also re-engaged in the first lock groove 21, and the locking mechanism is locked again. In this way, the upper wall bar 100, the lower wall bar 200 and the front accessory 400 are rotated at an angle relative to the interface frame 300 as a whole, thereby realizing the gear shifting of the child seat. In this embodiment, there are three second lock slots 31, correspondingly, the child seat can have three switchable use gears, as shown in Fig. 5, Fig. 10 and Fig. 12 respectively.

When it is necessary to switch the locking mechanism to the unlocked state, as shown in Fig. 13 and Fig. 14, the slider 5 is driven to slide along the guide groove 11 toward the rotating shaft 6, so that the first locking tongue 51 falls into the first chute 22, and the second The second locking tongue 52 falls into the second chute 33, the locking mechanism is unlocked, the base part 1, the first connecting part 2 and the second connecting part 3 can be rotated relative to each other, and the third connecting part 4 can also be rotated relative to the base part 1. And the first connecting part 2 rotates. At this time, the upper wall rod 100, the lower wall rod 200, the interface frame 300 and the front attachment 400 can be relatively rotated according to the direction shown in FIG. 15 to gradually move closer. During the rotation, the first lock tongue 51 slides along the first chute 22, the second lock tongue 52 slides along the second chute 33, the first limit pin 23 slides along the first arc groove 41, and the second limit pin 12 slides along the second arc-shaped groove 42, thus forming a relative sliding guide between the components. Finally, the upper wall bar 100, the lower wall bar 200, the interface frame 300 and the front accessory 400 are moved closer to each other to form a state as shown in Figures 20 and 21, and the folded child seat has a compact and smooth structure.

A control mechanism (not shown in the figure) for controlling the slide block 5 to slide forward and backward along the guide groove 11 is also provided on the above-mentioned rotating joint, so as to switch the working state of the locking mechanism.

To sum up, in the child seat of the present invention, the upper girth rod 100, the lower girdle rod 200, the interface frame 300, and the front attachment 400 are rotationally connected together by using a new type of rotating joint, so that the child seat can be stably positioned in the unfolded state. When the child seat is unfolded and used, it can also be conveniently shifted to meet the different needs of users; The surrounding bar 200, the interface frame 300, and the front attachment 400 are relatively rotated and close together to realize the folding of the child seat. The folded structure is very compact and flat, which brings convenience for the user to carry and store.

In addition, when the front accessory 400 is connected to the upper wall rod 100 and the lower wall rod 200 by other connection methods, the upper wall rod 100, the lower wall rod 200, and the interface frame 300 can also be rotationally connected and locked by the above-mentioned rotating joints, which can also be Realize the function of multi-gear conversion and convenient folding.

The above-mentioned rotary joint can also be used for the rotary connection and locking of three rods or four rods on other products, which can realize shifting and convenient folding.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. a kind of cradle head, three cradling pieces including the connection that rotates, for by the locking of three support rod locks Mechanism, wherein a cradling piece is the pedestal bar with base portion, another two cradling pieces are respectively and connect with first First bar of socket part and second bar with second connecting portion, it is characterised in that：

The first connecting portion, second connecting portion are rotated with the base portion respectively and are connected, and the first connecting portion is with respect to institute State when base portion is rotated the first rotary centerline for being surrounded and the second connecting portion relative to the base portion rotate when enclosed Around the second rotary centerline be parallel to each other or collinearly extend, the locking mechanism is included slidably in the base portion Slide block, the glide direction of the slide block are perpendicular with the bearing of trend of first rotary centerline, the second rotary centerline, institute State slide block be provided with for be engaged with the first connecting portion the first dead bolt, for what is be engaged with the second connecting portion Second dead bolt, offers in the first connecting portion and is available for first dead bolt when the slide block base portion relatively is slided The first locked groove for accordingly snapping in be connected with first locked groove and be available for first dead bolt the first connecting portion with The first chute that the base portion is slidably inserted into when rotating against, offers in the second connecting portion and multiple is available for described The second locked groove that two dead bolts are accordingly snapped in when the relatively described base portion of the slide block is slided, multiple second locked grooves are in institute The circumferentially spaced about distribution that the second rotary centerline is center of rotation is stated, is further opened with the second connecting portion and described second Locked groove is connected and is available for second dead bolt to be slidably inserted into when the second connecting portion is rotated against with the base portion Gearshift chute and the second chute,

The locking mechanism has lock-out state, half released state and released state, when the locking mechanism is in the lock state When, first dead bolt is fastened in first locked groove, and second dead bolt is fastened in one of them described second locked groove, The first connecting portion, second connecting portion and the base portion interfix；When the locking mechanism is in half released state, First dead bolt causes the first connecting portion mutual with the base portion in being at least partly fastened on first locked groove Fixed, second dead bolt departs from from second locked groove and is located in the gearshift chute, and the second connecting portion can phase The base portion is rotated；When the locking mechanism is in released state, first dead bolt is taken off from first locked groove From and be located at first chute in, second dead bolt depart from from second locked groove and be located at second chute in, The first connecting portion can be rotated relative to the base portion respectively with second connecting portion.

2. cradle head according to claim 1, it is characterised in that：The first connecting portion and the second connecting portion point Not Wei Yu the base portion different both sides, correspondingly, first dead bolt and second dead bolt are located at the slide block respectively The different both sides of the upper slide block.

3. cradle head according to claim 2, it is characterised in that：Offer in the base portion and can accommodate the slide block And the slide block is available for along the gathering sill perpendicular to first rotary centerline and the second rotary centerline slide-and-guide, it is described Slide block is slidably in the gathering sill.

4. cradle head according to claim 2, it is characterised in that：The base portion, the first connecting portion with it is described Second connecting portion is rotated connection by rotating shaft, and the pilot hole for being available for the rotating shaft to pass axially through is offered on the slide block, The rotating shaft is passed axially through the pilot hole and is rotationally rotated with the first connecting portion, second connecting portion and is connected.

5. cradle head according to claim 4, it is characterised in that：First chute is to be with the rotating shaft core line The arcuate groove of rotation centerline, first locked groove are located at the radial outside of first chute；The gearshift chute, second are slided Groove is the arcuate groove with the rotating shaft core line as rotation centerline, and second locked groove is located at the radial direction of the gearshift chute Outside, and second chute is located at the radially inner side of the gearshift chute.

6. cradle head according to claim 4, it is characterised in that：The cradle head is also included with the 3rd connecting portion The 3rd bar, the 3rd connecting portion is rotated by the rotating shaft with the base portion and is connected, when the locking mechanism is in Lock-out state or in half released state when, the relatively described base portion of the 3rd connecting portion and first connecting portion are fixed；Work as institute State cradle head in released state when, the 3rd connecting portion can relatively described base portion, first connecting portion around the rotating shaft Rotation.

7. cradle head according to claim 6, it is characterised in that：Offer on 3rd connecting portion with described turn First arcuate groove and second arcuate groove of the axle axial line for rotation centerline, the first connecting portion are provided with and can be axially inserted into Slide along first arcuate groove in first arcuate groove and when the first connecting portion is rotated relative to the 3rd connecting portion The first dynamic spacer pin, the base portion are provided with being axially inserted into second arcuate groove and relative in the base portion The second spacer pin slided along second arcuate groove when 3rd connecting portion is rotated.

8. cradle head according to claim 7, it is characterised in that：3rd connecting portion distinguishes position with the base portion In the different both sides of the first connecting portion, offer in the first connecting portion and be available for second spacer pin to pass axially through The 3rd arcuate groove, second spacer pin passes axially through the 3rd arcuate groove and inserts in second arcuate groove, when When the base portion is relatively rotated with the first connecting portion, second spacer pin is along the relative slip of the 3rd arcuate groove.

9. a kind of baby seat pocket, the upper pole, lower railing and interface shelf at least including the connection that rotates, it is characterised in that：It is described Upper pole, lower railing and the interface shelf are rotated connection by the cradle head as described in claim 1 to 8 is arbitrary, wherein, The base portion on a part in the upper pole and lower railing, the first connecting portion located at the upper pole with On another part in lower railing, the second connecting portion is on the interface shelf.

10. a kind of baby seat pocket, the upper pole, lower railing, interface shelf and front adnexa at least including the connection that rotates, its feature exist In：The upper pole, lower railing, the interface shelf and the front adnexa are closed by the rotation as described in claim 6 to 8 is arbitrary The connection that rotates is saved, wherein, on a part in the upper pole with lower railing, described first connects the base portion On another part in the upper pole with lower railing, the second connecting portion is on the interface shelf, described in portion 3rd connecting portion is on the front adnexa.