CN216636594U - Rotary connecting mechanism and children article with same - Google Patents

Abstract

The utility model discloses a rotary connecting mechanism and a children article with the rotary connecting mechanism, wherein the rotary connecting mechanism comprises a first connecting seat, a second connecting seat and a connecting assembly arranged between the first connecting seat and the second connecting seat, the connecting assembly comprises a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are rotatably connected around a pivot central line, one end part of the first connecting piece is rotatably connected to the first connecting seat around a first rotation central line, the second rotation central line and the pivot central line are mutually parallel, and the pivot central line is positioned between the first rotation central line and a first sliding piece and between the second rotation central line and a second sliding piece. When two parts connected by the rotary connecting mechanism are unfolded relatively on children products, the outer surfaces of the parts cannot form a raised step, and the children cannot be collided and damaged.

Description

Rotary connecting mechanism and children article with same

Technical Field

The utility model relates to a rotary connecting mechanism and a children article with the same.

Background

In the prior art, two parts of pivotal connection together are when being in relative opening, and the pivotal axis can form bellied step for the surface of two parts, especially when the current rotation coupling mechanism who adopts this kind of pivotal connection mode is applied to children's articles for use, and the bellied step that the surface formed probably can collide with children, influences children's articles for use's comprehensive performance.

Disclosure of Invention

The utility model aims to provide a novel rotary connecting mechanism.

In order to achieve the purpose, the utility model adopts the technical scheme that: a rotary connecting mechanism comprises a first connecting seat, a second connecting seat and a connecting component arranged between the first connecting seat and the second connecting seat, wherein the connecting component comprises a first connecting piece and a second connecting piece which are rotationally connected around a pivot central line,

one end of the first connecting piece is rotatably connected to the first connecting seat around a first rotation center line, the other end of the first connecting piece is rotatably connected to a first sliding piece, and the first sliding piece can be arranged on the second connecting seat in a relatively sliding manner; one end part of the second connecting piece is rotationally connected to the second connecting seat around a second rotation central line, the other end part of the second connecting piece is rotationally connected with a second sliding piece, the second sliding piece is arranged on the first connecting seat in a relatively sliding manner,

the first rotation center line, the second rotation center line and the pivot center line are parallel to each other, and the pivot center line is located between the first rotation center line and the first sliding member and between the second rotation center line and the second sliding member.

Preferably, the first connecting piece has a first connecting end portion and a second connecting end portion, the first connecting end portion and the second connecting end portion are respectively arranged on two different end portions of the first connecting piece in the length direction, the first connecting end portion is rotatably connected to the first connecting seat around a first rotation center line, and the first sliding piece is rotatably arranged at the second connecting end portion; the second connecting piece is provided with a third connecting end part and a fourth connecting end part, the third connecting end part and the fourth connecting end part are arranged on two different end parts of the second connecting piece in the length direction, the third connecting end part is rotationally connected to the second connecting seat around a second rotation center line, and the second sliding piece is rotationally arranged at the fourth connecting end part.

Further, the first connecting piece further comprises a first pivot connecting portion located between the first connecting end portion and the second connecting end portion, the second connecting piece further comprises a second pivot connecting portion located between the third connecting end portion and the fourth connecting end portion, and the first pivot connecting portion and the second pivot connecting portion are pivotally connected around the pivot center line.

Preferably, the first connecting piece comprises a first strut section and a first second strut section which are connected in the length direction, the length of the first strut section is shorter than that of the first second strut section, the first strut section is rotatably connected to the first connecting seat around the first rotation center line, and the first second strut section is rotatably connected to the first sliding piece; the second connecting piece comprises a second strut section and a second strut section which are connected along the length direction, the length of the second strut section is shorter than that of the second strut section, the second strut section is connected on the second connecting seat in a rotating mode around the second rotating center line, the second strut section is connected with the second sliding piece in a rotating mode, the first strut section and the first strut section form an included angle alpha, the second strut section and the second strut section form an included angle beta, the included angle alpha and the included angle beta are both larger than or equal to 90 degrees and smaller than 180 degrees, the first connecting piece comprises a first pivot connecting part located at the connection position between the first strut section and the first strut section, the second connecting piece comprises a second pivot connecting part located at the connection position between the second strut section and the second strut section, the first and second pivotal connections are pivotally connected about the pivot centerline.

Further preferably, the first connecting seat further has a first accommodating groove portion for accommodating the first strut section, and a second accommodating groove portion for accommodating the second strut section; the second connecting seat is also provided with a third accommodating groove part for accommodating the first two strut sections and a fourth accommodating groove part for accommodating the second strut section.

Preferably, the rotation connecting mechanism further includes a limiting member disposed between the first connecting member and the second connecting member, and the first connecting member, the limiting member and the second connecting member are connected together around the pivot center line in a relatively rotatable manner, and the limiting member has a limiting structure for limiting a maximum opening angle between the first connecting seat and the second connecting seat.

Further preferably, the first connecting element, the limiting element and the second connecting element are rotatably connected around the pivot center line.

Preferably, the first connecting seat comprises a first guide groove, and the first sliding piece is arranged in the first guide groove in a sliding fit manner; the second connecting piece comprises a second guide groove, the second guide groove is arranged in the second guide groove in a sliding fit mode, the first guide groove is parallel to the length extending direction of the first connecting piece, and the second guide groove is parallel to the length extending direction of the second connecting piece.

Another object of the present invention is to provide a children's article with the novel rotational connection mechanism.

In order to achieve the purpose, the utility model adopts the technical scheme that: a children's article comprises a first component and a second component which are connected in a rotating mode, wherein the first component is connected with the second component through any one of the rotating connection mechanisms, the rotating connection mechanisms are connected with each other, the first connection seat is fixedly arranged on the first component, the second connection seat is fixedly arranged on the second component, the first component and the second component are in an open state and a folded state, the first component and the second component extend along the same length direction in the open state, and the first component and the second component are attached to each other in the folded state.

In one embodiment, the child article is a stroller or a child dining chair having a seating arrangement comprising a seat and a backrest, wherein: the seat is rotatably connected with the backrest and respectively forms the first part and the second part; or the backrest comprises an upper backrest and a lower backrest which can be relatively rotated and folded, and the upper backrest and the lower backrest respectively form the first component and the second component;

as a specific implementation manner, the child product is a child sleeping basket, a child seat pocket or a child bed with a supporting plate for lying on a human body, the supporting plate comprises a first plate and a second plate which can be folded relatively, and the first plate and the second plate respectively form the first part and the second part;

as a specific embodiment, the children product is a children fence with a side enclosure frame, the side enclosure frame is provided with a first enclosure rod and a second enclosure rod which can rotate and be folded relatively, and the first enclosure rod and the second enclosure rod respectively form the first component and the second component;

in a specific embodiment, the children's article is a crib or a child enclosure having a door, the door is rotatably connected to a main body of the crib or the child enclosure, and the door and the main body respectively form the first member and the second member.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: when the two parts which are pivotally connected on the children product are oppositely opened, the pivoting shaft of the rotary connecting mechanism can not form a raised step relative to the outer surfaces of the two parts, so that the surface of the first part and the second part is relatively flat when the first part and the second part are relatively unfolded, flat leaning support or circumferential protection for children is provided, and the children product with the novel rotary connecting mechanism has higher safety.

Drawings

FIG. 1 is a schematic side view of a first child's article of the present invention in an unfolded state (embodiment one);

FIG. 2 is a schematic three-dimensional view of a first child product according to the present invention in an unfolded state (embodiment I);

FIG. 3 is a schematic top view of the child's article of the present invention with the first and second members in an open position (embodiment one);

FIG. 4 is a schematic three-dimensional view of a first and second member of the children's article of the present invention in an open position (embodiment one);

FIG. 5 is a schematic side view of a child article according to the present invention with the first and second members in an open position (embodiment one);

FIG. 6 is a schematic longitudinal sectional view of the first and second components of the children's article of the present invention, taken along line F of FIG. 2; (embodiment one);

FIG. 7 is a schematic three-dimensional view of a first connecting member of the child article of the present invention; (embodiment one);

FIG. 8 is a schematic side view of a first connecting member of the child article of the present invention; (embodiment one);

FIG. 9 is a schematic three-dimensional view of a second connector of the children's article of the present invention; (embodiment one);

FIG. 10 is a side view of a second connector of the children's article of the present invention (embodiment one);

FIG. 11 is a schematic exploded view of a rotating link mechanism of the child product of the present invention (embodiment I);

FIG. 12 is a schematic exploded view of the first and second members and the pivotal connection mechanism of the children's article according to the present invention (embodiment I);

FIG. 13 is a schematic side view of a child article according to the present invention, showing a first member and a second member being folded from an open position to a collapsed position (embodiment I);

fig. 14 is a schematic three-dimensional view (embodiment one) of the child product according to the present invention, when the first member and the second member are switched from the open state to the folded state;

FIG. 15 is a schematic side view of a child article according to a first embodiment of the present invention, wherein the first and second members are folded;

FIG. 16 is a schematic three-dimensional view of a first member and a second member of the children's product of the present invention in a folded state (embodiment I);

FIG. 17 is a schematic side view of a second child's article of the present invention in an expanded configuration (embodiment one);

FIG. 18 is a schematic three-dimensional view of a second child's article according to the present invention in an unfolded state (embodiment one);

FIG. 19 is a schematic side view of the child's article of the present invention as it transitions from the unfolded position to the folded position (embodiment one);

FIG. 20 is a schematic three-dimensional view of the child's article of the present invention as it transitions from the unfolded position to the folded position (embodiment one);

FIG. 21 is a schematic side view of the child article of the present invention in a folded configuration (embodiment one);

FIG. 22 is a schematic three-dimensional view of the child's article of the present invention in a folded configuration (embodiment one);

FIG. 23 is a schematic side view of a child article according to the present invention (example II);

FIG. 24 is a schematic cross-sectional view of the child article of the present invention corresponding to position J in FIG. 23 (example two);

FIG. 25 is a schematic side view of the child article of the present invention;

FIG. 26 is a schematic side view of a child's article of the present invention in the second embodiment;

FIG. 27 is a side view of the child article of the present invention with the first and second components shown in an expanded position relative to each other (embodiment four);

FIG. 28 is a side view of the child article of the present invention with the first and second components shown in a collapsed position (embodiment four);

wherein: a0, a baby stroller; a1, a vehicle frame; a2, wheel assembly; a3, seat device; a3-1, seat; a3-2, backrest; a3-3, upper backrest; a3-4, lower backrest;

100. a first member; 101. a first member body;

200. a second component; 201. a second component body;

300. a rotating connection mechanism; 301. a first connecting seat; 301a, a first receiving chamber portion; 302. A second connecting seat; 302a, a second receiving cavity portion;

1. a first connecting member; 11. a first connecting end portion; 12. a second connection end portion; 13. a first pivot connection; 1-1, a first strut section; 1-2, a first and a second strut section;

2. a second connecting member; 21. a third connecting end portion; 22. a fourth connection end portion; 23. a second pivot connection; 2-1, a second strut section; 2-2, a second strut section;

3. a first pin shaft; 4. a second pin shaft; 5. a first guide groove; 6. a second guide groove; 7. a first receiving groove; 8. a second receiving groove; 9. a third accommodating groove; 10. a fourth receiving groove;

11-0, a limiting piece; 11-1, a butting surface;

12-1, a first open slot; 12-2, a second open slot;

b0, child dining chair; b1, a bracket;

d0-1, a children sleeping basket; d0-2, a child seat pocket; d0-3, a child bed; d1, support plate; d2, a first plate; d3, a second plate;

e0, child fences; e1, a side frame; e2, a first surrounding rod; e3, a second enclosing rod;

a. a pivot centerline; b. a first rotational centerline; c. a second centerline of rotation.

Detailed Description

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

The first embodiment is as follows:

a children's article comprises a first part 100 and a second part 200 which are mutually connected in a rotating way, the first part 100 and the second part 200 are relatively connected in a rotating way through a rotating connection mechanism 300, and as shown in figures 1 and 4, the children's article in the embodiment is a children's barrow A0 with a seat device A3-0. The stroller A0 further comprises a frame A1 having an unfolded state and a folded state, and a wheel assembly A2 arranged at the bottom of the frame, wherein a seat device A3-0 is arranged on the frame A1, and a seat device A3-0 comprises a seat A3-1 and a backrest A3-2, in this embodiment, the seat plate A3-1 is a first component 100, and the backrest A3-2 is a second component 200.

Specifically, the first component 100 includes a first component body 101, and the second component 200 includes a second component body 201. The rotating connection mechanism 300 includes a first connection seat 301, a second connection seat 302, and a connection assembly disposed between the first connection seat 301 and the second connection seat 302, the first connection seat 301 is fixed on one end of the first component body 101, the second connection seat 302 is fixed on one end of the second component body 201 opposite to the first connection seat 301, the connection assembly includes a first connection member 1 and a second connection member 2, and the first connection member 1 and the second connection member 2 are rotatably connected around a pivot center line a. In this embodiment, the first member 100 and the second member 200 are rotatably connected by one or more sets of the rotary connection mechanisms 300, and the pivot center lines a of all the sets of the rotary connection mechanisms 300 extend in a common line.

Specifically, referring to fig. 5 and 6, the first connecting member 1 has a first connecting end portion 11 and a second connecting end portion 12, the first connecting end portion 11 and the second connecting end portion 12 are respectively disposed on two opposite ends of the first connecting member 1 in the length direction, the first connecting end portion 11 is pivotally connected to the first connecting seat 301, and the second connecting end portion 12 is disposed on the second connecting seat 302 in a manner that the second connecting end portion 12 can relatively rotate and relatively slide along the length extending direction of the second component 200, specifically, in the embodiment, the first connecting end portion 11 is rotatably connected to the first connecting seat 301 around the first rotation center line b, the second connecting end portion 12 is rotatably connected to the first sliding member, and the first sliding member is disposed on the second connecting seat 302 in a manner that the first sliding member can relatively slide along the length extending direction of the second component body 201.

Referring to fig. 7 and 8, the second link 2 has a third connecting end portion 21 and a fourth connecting end portion 22, the third connecting end portion 21 and the fourth connecting end portion 22 are respectively disposed on two opposite ends of the second link 2 in the length direction, the third connecting end portion 21 is pivotally connected to the second connecting seat 302, the fourth connecting end portion 22 is disposed on the first connecting seat 301 in a manner capable of relatively rotating and relatively sliding along the length extending direction of the first component 100, specifically, in the present embodiment, the third connecting end portion 21 is rotatably connected to the second connecting seat 302 about the second rotation center line c, the fourth connecting end portion 22 is rotatably connected to a second sliding member, and the second sliding member is disposed on the first connecting seat 301 in a manner capable of relatively sliding along the length extending direction of the first component body 101. The first rotation center line b, the second rotation center line c and the pivot center line a are parallel to each other, the pivot center line a is located between the first rotation center line b and the first slide member on the first connecting member 1, and the pivot center line a is located between the second rotation center line c and the second slide member on the second connecting member 2.

Specifically, in the present embodiment, referring to fig. 4 and 9, the first sliding part is a first pin 3, the second connecting seat 302 is provided with a first guide slot 5 extending along the length extending direction of the second component body 201, and the first pin 3 is slidably disposed in the first guide slot 5; the second sliding part is a second pin shaft 4, a second guide groove 6 extending along the length of the first part body 101 along the direction is formed in the first connecting seat 301, and the second pin shaft 4 can be arranged in the second guide groove 6 in a sliding fit manner.

In this embodiment, referring to fig. 5 to 8, the first connecting member 1 includes a first strut section 1-1 and a first second strut section 1-2 connected along the length direction and respectively disposed on two opposite sides of the pivot center line; the second connecting member 2 includes a second strut section 2-1 and a second strut section 2-2 extending along the length direction and respectively disposed on two opposite sides of the pivot center line a, specifically, the length of the first strut section 1-1 is smaller than the length of the first and second strut sections 1-2, and the length of the second strut section 2-1 is greater than the length of the second strut section 2-2. An included angle alpha is formed between the first strut section 1-1 and the first strut section 1-2, an included angle beta is formed between the second strut section 2-1 and the second strut section 2-2, and the included angles alpha and beta are both larger than or equal to 90 degrees and smaller than 180 degrees.

The first connecting end 11 is located at the end of the first strut section 1-1 close to the first connecting seat 301, the second connecting end 12 is located at the end of the first second strut section 1-2 close to the second connecting seat 302, the third connecting end 21 is located at the end of the second strut section 2-1 close to the second connecting seat 302, and the fourth connecting end 22 is located at the end of the second strut section 2-2 close to the first connecting seat 301. In this embodiment, and as shown in fig. 5-8, the first link 1 further has a first pivotal connection 13 disposed at the junction between the first strut section 1-1 and the first strut section 1-2, and the second link 2 further has a second pivotal connection 23 disposed at the junction between the second strut section 2-1 and the second strut section 2-2.

The first member 100 and the second member 200 have an open state and a folded state, as shown in fig. 1, fig. 2, and fig. 11 to fig. 14, when in the open state, the first member 100 and the second member 200 extend along the same length direction, the connecting assembly is accommodated in the accommodating space formed between the first member 100 and the second member 200, the surface of the second member 200 of the first member 100 is not protruded, and the gap between the first member 100 and the second member is small, so that the risk of injury of a child when the child rides on the stroller a0 is reduced; when in the folded state, the first member 100 and the second member 200 are attached to each other and folded, so that the space occupied by the folded members is reduced, and the interference between the first member 100 and the second member 200 and other parts of the stroller a0 in the folding process of the stroller frame a1 is effectively avoided.

Referring to fig. 4 and 9, the first connecting base 301 is provided with a first receiving groove 7 for receiving the first strut section 1-1 and a second receiving groove 8 for receiving the second strut section 2-1; the first second strut section 1-2 and the second strut section 2-2 are respectively connected with the second component 200, and the second connecting seat 302 is provided with a third accommodating groove 9 for accommodating the first second strut section 1-2 and a fourth accommodating groove 10 for accommodating the second strut section 2-2. In the embodiment, the first guide groove 5 and the third receiving groove 9 are communicated with each other, and the second guide groove 6 and the second receiving groove 8 are communicated with each other.

In this embodiment, the rotating connecting mechanism 300 further includes a limiting member 11-0 disposed between the first connecting member 1 and the second connecting member 2, the limiting member 11-0 has a limiting structure for limiting a maximum opening angle between the first connecting base 301 and the second connecting base 302, specifically, in this embodiment, the limiting member 11-0 is disposed between the first pivot connecting portion 13 and the second pivot connecting portion 23, the first pivot connecting portion 13, the limiting member 11-0 and the second pivot connecting portion 23 are connected together around the pivot central line a in a relatively rotating manner, and the limiting member 11-0 has an abutting surface 11-1 extending along a circumferential direction, which is the limiting structure in this embodiment, namely, the abutting surface 11-1.

Specifically, the first connecting seat 301 has a first receiving cavity portion 301a at a position corresponding to the position-limiting member 11-0, the second connecting seat 302 has a second receiving cavity portion 302a at a position corresponding to the position-limiting member 11-0, and the first receiving cavity portion 301a and the second receiving cavity portion 302a can cooperate with each other to form a receiving cavity for receiving the position-limiting member 11-0. In the relative opening process of the first connecting piece 1 and the second connecting piece 2, the limiting piece 11-0 and the receiving cavity gradually get close to each other until the abutting surface 11-1 is abutted in the receiving cavity in a matched manner, and the first part 100 and the second part 200 are in an open state. At this time, the relative rotation between the first connecting piece 1 and the second connecting piece 2 in the opening direction is limited, and at this time, the included angle formed between the first connecting piece 1 and the second connecting piece 2 is the maximum opening angle of the two.

The first connecting seat 301 is provided with a first opening groove 12-1, the second connecting seat 302 is provided with a second opening groove 12-2 at a position opposite to the first opening groove 12-1, and the first opening groove 12-1 and the second opening groove 12-2 can be mutually matched to form a containing cavity for containing the first pivot connecting part 13 and the second pivot connecting part 23.

In this embodiment, the seat assembly A3-0 further includes a first locking mechanism (not shown) capable of locking the backrest A3-2 between the open position and the folded position in a plurality of use positions, each corresponding to a different relative position between the backrest A3-2 and the seat A3-1.

When the frame A1 is in a unfolding state, the seat A3-1 and the backrest A3-2 are relatively opened or in an opening state, and the seat A3-1 and the backrest A3-2 are combined to form a sitting and standing support part for a child to sit and stand. At this time, the user can adjust the backrest A3-2 to different use gears, specifically, the locking of the seat A3-1 and the backrest A3-2 by the first locking mechanism (not shown in the figure) is released, the backrest A3-2 is adjusted to the use gear that the child can comfortably lean against the backrest A3-2, and then the first locking mechanism (not shown in the figure) locks the first backrest. Due to the rotary connecting mechanism 300, no step protruding from the outer surfaces of the seat A3-1 and the backrest A3-2 exists between the seat A3-1 and the backrest A3-2, and children cannot be collided by the protruding step when sitting on the seat device A3-0; in addition, the gap between the seat A3-1 and the backrest A3-2 is small, clothes, fingers and the like of children are not easy to be clamped, and the risk of injury when the child stroller A0 is used is effectively reduced.

When the frame a1 is in the unfolded state, as shown in fig. 15 and 16 in particular, the seat A3-1 and the backrest A3-2 are relatively opened or in the opened state, and the seat A3-1 and the backrest A3-2 are combined to form a lying support portion for the child to lie on, at this time, the user can adjust the backrest A3-2 to different use gears, specifically, release the locking of the first locking mechanism (not shown) on the seat A3-1 and the backrest A3-2, adjust the backrest A3-2 to a use gear at which the child can lie comfortably, and lock the first locking mechanism (not shown) for locking. Because of the rotary connecting mechanism 300, no step which protrudes from the outer surfaces of the seat A3-1 and the backrest A3-2 exists between the seat A3-1 and the backrest A3-2, and children cannot be collided by the protruding step when lying on the seat device A3-0; in addition, the gap between the seat A3-1 and the backrest A3-2 is small, clothes, fingers and the like of a child are not easy to clamp, and the risk of injury when the child lies on the child stroller A0 is effectively reduced.

In the process of converting the frame A1 from the unfolded state to the folded state, specifically referring to FIGS. 19 and 20, the locking of the seat A3-1 and the backrest A3-2 by the first locking mechanism (not shown in the figure) is released, the backrest A3-2 is pushed backwards, the backrest A3-2 rotates downwards through the rotating connecting mechanism 300, and the backrest A3-2 and the frame A1 are gradually and relatively close; when frame A1 is in the folded state, as shown in particular in FIGS. 21 and 22, backrest A3-2 is folded against frame A1.

In some other embodiments of this embodiment, referring to fig. 17-22, the seat device A3-0 includes a seat A3-1 and a backrest A3-2, the backrest A3-2 includes an upper backrest A3-3 and a lower backrest A3-4, the upper backrest A3-3 and the lower backrest A3-4 respectively form the first component 100 and the second component 200, and the rotation connecting mechanism 300 is disposed between the upper backrest A3-3 and the lower backrest A3-4 and enables the two to rotate and fold relatively.

When the frame a1 is in the unfolded state, as shown in fig. 17 and 18 in particular, the upper backrest A3-3 and the lower backrest A3-4 are in the opened state, and as a result of the rotating connecting mechanism 300, no step protruding from the outer surfaces of the upper backrest A3-3 and the lower backrest A3-4 exists between the two, and a child cannot be collided with the protruding step when sitting on the seat device A3-0; thanks to the limiting structure, the upper backrest A3-3 is limited to rotate backwards in the opening state, and the upper backrest A3-3 can provide stable leaning support for children; when the frame a1 is converted from the unfolded state to the folded state, referring to fig. 19 and 20 in particular, the upper backrest A3-3 is pushed forward, so that the upper backrest A3-3 gradually rotates downward, and the upper backrest A3-3 and the lower backrest A3-4 gradually and relatively fold; in the folded position of frame A1, and with particular reference to FIGS. 20 and 21, upper back A3-3 and lower back A3-4 are folded in facing engagement, and seating arrangement A3-0 and frame A1 are folded together. Thanks to the pivotal connection 300, the upper backrest A3-3 and the lower backrest A3-4 can be folded in a relatively close manner, the space occupied by the folded backrest A3-2 is reduced, and the upper backrest A3-3 does not interfere with other parts of the frame a1 during folding of the seat assembly A3-0 with the frame a 1. The first locking mechanism (not shown in the figures) is a conventional one, and is various, and is not an innovation of the present invention, and will not be described herein again.

Example two:

the main differences between the present embodiment and the first embodiment are as follows: the children's article in this embodiment is a child dining chair B0. Referring to figures 23 and 24, child dining chair B0 includes a frame B1 and a seat assembly A3-0 disposed on top of frame B1, in this embodiment, seat assembly A3-0 includes seat A3-1 and backrest A3-2, wherein: the seat A3-1 and the backrest A3-2 respectively form a first component 100 and a second component 200, the rotating connecting mechanism 300 is arranged between the seat A3-1 and the backrest A3-2 and enables the seat A3-1 and the backrest A3-2 to be connected in a rotating mode, the seat device A3-0 further comprises a second locking mechanism (not shown in the figure), and the second locking mechanism (not shown in the figure) can lock the backrest A3-2 and the seat A3-1 in a plurality of using gear positions between an opening state and a folding state, wherein each using gear position corresponds to different relative positions between the backrest A3-2 and the seat A3-1. The arrangement enables a user to adjust the backrest A3-2 to different use gears when a child sits and stands on the dining chair B0 for dining, specifically, the locking of the seat A3-1 and the backrest A3-2 by the second locking mechanism (not shown in the figure) is released, the backrest A3-2 is adjusted to a use gear corresponding to the backrest A3-2 which can be comfortably leaned against by the child, and then the second locking mechanism (not shown in the figure) is used for locking.

Due to the rotary connecting mechanism 300, no step protruding from the outer surfaces of the seat A3-1 and the backrest A3-2 exists between the seat A3-1 and the backrest A3-2, and children cannot be collided by the protruding step when sitting on the seat device A3-0; in addition, the gap between the seat A3-1 and the backrest A3-2 is small, clothes, fingers and the like of the child are not easy to clamp, and the risk of injury of the child when the child takes the child dining chair B0 is effectively reduced. The second locking mechanism (not shown in the figures) is a conventional one, and is of various kinds, and is not an innovation of the present invention, and is not described herein again.

Example three:

referring to fig. 25 and 26, the present embodiment is mainly different from the first embodiment in that: the children articles in the embodiment are a children sleeping basket D0-1 with a supporting plate D1 for a human body to lie, a children sitting pocket D0-2 or a children bed D0-3. In this embodiment, referring to fig. 25, a child supporting device that integrates a child sleeping basket D0-1 and a child seat pocket D0-2 is provided, the child supporting device has a first application state that can be used as the child sleeping basket D0-1 and a second application state that can be used as the child seat pocket D0-2, the child supporting device having the first application state and the second application state is a conventional art, and has many kinds and is not related to the innovation of the present invention, which will not be described herein again.

In this embodiment, the supporting plate D1 includes a first plate D2 and a second plate D3 which can be folded relatively, a first member 100 and a second member 200 which are respectively composed of the first plate D2 and the second plate D3, and a rotating connection mechanism 300 which is disposed between the first plate D2 and the second plate D3 and connects them in a rotating manner.

When the children article is a children sleeping basket D0-1 or a child bed D0-3, the first plate D2 and the second plate D3 are in an open state, and the first plate D2 and the second plate D3 are combined to form a lying support part for a child to lie. Due to the rotary connecting mechanism 300, no step protruding from the outer surfaces of the first plate D2 and the second plate D3 exists between the first plate D3878 and the second plate D3, so that a child can not be collided by the protruding step when lying on the children sleeping basket D0-1 or the child bed D0-3; in addition, the gap between the first plate D2 and the second plate D3 is small, clothes, fingers and the like of children are not easy to clamp, and the risk of injury when the children lie on the children sleeping basket D0-1 or the children bed D0-3 is effectively reduced.

When the children product is a children seat pocket D0-2, the first plate D2 and the second plate D3 are combined to form a sitting and standing supporting part for the children to sit and stand. Due to the rotary connecting mechanism 300, no step protruding from the outer surfaces of the first plate D2 and the second plate D3 exists between the first plate D2 and the second plate D3, so that a child cannot be collided by the protruding step when sitting and standing on the child seat pocket D0-2; in addition, the gap between the first plate D2 and the second plate D3 is small, clothes, fingers and the like of children are not easy to be clamped, and the risk of injury when the child seat pocket D0-2 is taken is effectively reduced.

Example four:

referring to fig. 27 and 28, the present embodiment is mainly different from the first embodiment in that: the children's article in this embodiment is a children's rail E0 with a side enclosing frame E1, the side enclosing frame E1 has a first enclosing rod E2 and a second enclosing rod E3 which can be relatively rotated and folded, and the first enclosing rod E2 and the second enclosing rod E3 respectively constitute a first component 100 and a second component 200. Due to the rotary connecting mechanism 300, no step protruding from the outer surfaces of the first enclosing rod E2 and the second enclosing rod E3 exists between the first enclosing rod E2 and the second enclosing rod E3, so that a child cannot be collided by the protruding steps when the child is positioned in the child enclosure E0; in addition, the gap between the first enclosing rod E2 and the second enclosing rod E3 is small, clothes, fingers and the like of children are not easy to clamp, and the risk of injury when the children are located in the child enclosure E0 is effectively reduced.

In some other forms of this embodiment, the child article is a crib or a child enclosure having a door pivotally connected to a main body of the crib or the child enclosure, the door and the main body respectively forming the first member 100 and the second member 200.

In summary, through the demonstration of various implementation forms, when the rotary connecting mechanism is connected with two components in a children product, a gap between the connection positions of the two components can be small, a protruding step protruding out of the outer surfaces of the two components can not be formed when the two components are relatively unfolded, collision injury to children can not be caused, and the two components can be relatively attached and folded when being relatively folded.

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

Claims (10)

1. A kind of rotation coupling mechanism, its characterized in that: the rotary connecting mechanism comprises a first connecting seat, a second connecting seat and a connecting assembly arranged between the first connecting seat and the second connecting seat, the connecting assembly comprises a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are rotationally connected around a pivot center line,

one end of the first connecting piece is rotatably connected to the first connecting seat around a first rotation center line, the other end of the first connecting piece is rotatably connected to a first sliding piece, and the first sliding piece can be arranged on the second connecting seat in a relatively sliding manner; one end part of the second connecting piece is rotationally connected to the second connecting seat around a second rotation central line, the other end part of the second connecting piece is rotationally connected with a second sliding piece, the second sliding piece is arranged on the first connecting seat in a relatively sliding manner,

the first rotation center line, the second rotation center line and the pivot center line are parallel to each other, and the pivot center line is located between the first rotation center line and the first sliding member and between the second rotation center line and the second sliding member.

2. The rotating coupling mechanism of claim 1, wherein: the first connecting piece is provided with a first connecting end part and a second connecting end part, the first connecting end part and the second connecting end part are arranged on two different end parts of the first connecting piece in the length direction, the first connecting end part is rotatably connected to the first connecting seat around a first rotation center line, and the first sliding piece is rotatably arranged at the second connecting end part; the second connecting piece is provided with a third connecting end part and a fourth connecting end part, the third connecting end part and the fourth connecting end part are arranged on two different end parts of the second connecting piece in the length direction, the third connecting end part is rotationally connected to the second connecting seat around a second rotation center line, and the second sliding piece is rotationally arranged at the fourth connecting end part.

3. The rotating coupling mechanism of claim 2, wherein: the first connecting piece further comprises a first pivot connecting portion located between the first connecting end portion and the second connecting end portion, the second connecting piece further comprises a second pivot connecting portion located between the third connecting end portion and the fourth connecting end portion, and the first pivot connecting portion and the second pivot connecting portion are pivotally connected around the pivot center line.

4. The rotating coupling mechanism of claim 1, wherein: the first connecting piece comprises a first supporting rod section and a first second supporting rod section which are connected in the length direction, the length of the first supporting rod section is shorter than that of the first second supporting rod section, the first supporting rod section is rotatably connected to the first connecting seat around the first rotation center line, and the first second supporting rod section is rotatably connected to the first sliding piece; the second connecting piece comprises a second strut section and a second strut section which are connected along the length direction, the length of the second strut section is shorter than that of the second strut section, the second strut section is connected on the second connecting seat in a rotating mode around the second rotating center line, the second strut section is connected with the second sliding piece in a rotating mode, the first strut section and the first strut section form an included angle alpha, the second strut section and the second strut section form an included angle beta, the included angle alpha and the included angle beta are both larger than or equal to 90 degrees and smaller than 180 degrees, the first connecting piece comprises a first pivot connecting part located at the connection position between the first strut section and the first strut section, the second connecting piece comprises a second pivot connecting part located at the connection position between the second strut section and the second strut section, the first and second pivotal connections are pivotally connected about the pivot centerline.

5. The rotating coupling mechanism of claim 4, wherein: the first connecting seat is also provided with a first accommodating groove part for accommodating the first strut section and a second accommodating groove part for accommodating the second strut section; the second connecting seat is also provided with a third accommodating groove part for accommodating the first two strut sections and a fourth accommodating groove part for accommodating the second strut section.

6. The rotating coupling mechanism of claim 1, wherein: the rotating connection mechanism further comprises a limiting part arranged between the first connecting part and the second connecting part, the first connecting part, the limiting part and the second connecting part are connected together in a relative rotating mode around the pivot center line, and the limiting part is provided with a limiting structure used for limiting the maximum opening angle between the first connecting seat and the second connecting seat.

7. The rotating coupling mechanism of claim 6, wherein: the first connecting piece, the limiting piece and the second connecting piece are connected in a rotating mode around the pivoting center line.

8. The rotating coupling mechanism of claim 1, wherein: the first connecting seat comprises a first guide groove, and the first sliding piece is arranged in the first guide groove in a sliding fit manner; the second connecting piece comprises a second guide groove, the second guide groove is arranged in the second guide groove in a sliding fit mode, the first guide groove is parallel to the length extending direction of the first connecting piece, and the second guide groove is parallel to the length extending direction of the second connecting piece.

9. A children's article, characterized in that: the connecting device comprises a first component and a second component which are mutually and rotatably connected, wherein the first component and the second component are connected through a group of rotating connecting mechanisms according to any one of claims 1 to 8, the first connecting seat is fixedly arranged on the first component, and the second connecting seat is fixedly arranged on the second component.

10. The children's article of claim 9, wherein: the children's article is a stroller or a child dining chair having a seating arrangement comprising a seat and a backrest, wherein: the seat is rotatably connected with the backrest and respectively forms the first part and the second part; or the backrest comprises an upper backrest and a lower backrest which can be relatively rotated and folded, and the upper backrest and the lower backrest respectively form the first component and the second component;

or the children article is a children sleeping basket, a children seat pocket or a children bed with a support plate for a human body to lie, the support plate comprises a first plate and a second plate which can be folded relatively, and the first plate and the second plate respectively form the first part and the second part;

or the children article is a children fence with a side enclosing frame, the side enclosing frame is provided with a first enclosing rod and a second enclosing rod which can rotate and be folded relatively, and the first enclosing rod and the second enclosing rod respectively form the first part and the second part;

or the children product is provided with a crib or a child fence of a door fence, the door fence is rotatably connected to the main body of the crib or the child fence, and the door fence and the main body respectively form the first component and the second component.

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