CN216140044U - Rotary joint and stroller comprising same - Google Patents
Rotary joint and stroller comprising same Download PDFInfo
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- CN216140044U CN216140044U CN202121811241.6U CN202121811241U CN216140044U CN 216140044 U CN216140044 U CN 216140044U CN 202121811241 U CN202121811241 U CN 202121811241U CN 216140044 U CN216140044 U CN 216140044U
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- connecting seat
- rotating shaft
- base
- push rod
- pin shaft
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- 238000013459 approach Methods 0.000 claims description 15
- 238000011017 operating method Methods 0.000 abstract 1
- 238000003032 molecular docking Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a rotary joint and a stroller comprising the same, wherein the rotary joint comprises a base, a first connecting seat and a second connecting seat, the first connecting seat and the second connecting seat are rotatably connected through a first rotating shaft, a second rotating shaft is further arranged among the first connecting seat, the second connecting seat and the base, the first rotating shaft and the second rotating shaft are arranged in parallel, a first linkage unit is arranged between the first connecting seat and the base, a second linkage unit is arranged between the second connecting seat and the base, the first linkage unit links the first connecting seat to rotate relative to the second connecting seat when the base rotates relative to the second connecting seat, and the second linkage unit links the second connecting seat to rotate relative to the first connecting seat when the base rotates relative to the first connecting seat. This joint realizes that the base rotates under different states, all can link first, the rotation of second connecting seat, simplifies the operating procedure, and joint simple structure for on the children's shallow, simplify children's shallow structure, make its whole light more.
Description
Technical Field
The utility model relates to the field of children products, in particular to a rotary joint and a stroller with the same.
Background
In the prior art, many stroller designs include a plurality of bars that rotate relative to each other to allow the stroller to be converted between different states. Generally, if one rotary joint is connected with three or more rod pieces which are mutually and rotatably connected, the structural design of the rotary joint becomes complicated, and the rod pieces do not have linkage relation, and need to be respectively driven to rotate, so that the operation is complex, and the structure is complex.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a rotary joint which has a simple structure and can realize linkage rotation of different rod pieces and a stroller comprising the rotary joint.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a rotary joint comprises a base, a first connecting seat and a second connecting seat, wherein the first connecting seat and the second connecting seat are connected through a first rotating shaft in a rotating mode, a second rotating shaft is further arranged between the first connecting seat and the second connecting seat, the axial lead of the first rotating shaft and the axial lead of the second rotating shaft are arranged in parallel, a first linkage unit is arranged between the first connecting seat and the base, a second linkage unit is arranged between the second connecting seat and the base, the first linkage unit is arranged between the base and the base, the base is opposite to the second connecting seat in a linkage mode when the second rotating shaft rotates along a first direction, the first connecting seat is opposite to the second connecting seat in a winding mode, the second linkage unit is arranged between the base and the first connecting seat in a winding mode when the base rotates along a second direction, the second connecting seat is opposite to the second connecting seat in a linkage mode when the second rotating shaft rotates along a second direction, the first connecting seat winds the first rotating shaft along a first direction One direction is rotated.
Furthermore, the first linkage unit comprises a first pin shaft arranged on the base and a first chute arranged on the first connecting seat, the first pin shaft is inserted into the first chute in a sliding and rotating fit manner, and the axis of the first pin shaft is parallel to the axis of the first rotating shaft or the axis of the second rotating shaft; and/or the second linkage unit comprises a second pin shaft arranged on the base and a second chute arranged on the second connecting seat, the second pin shaft is inserted in the second chute in a sliding and rotating fit manner, and the axis of the second pin shaft is arranged in parallel with the axis of the first rotating shaft or the axis of the second rotating shaft.
According to some embodiments of the present invention, the first pin is fixedly disposed on the base, a first avoiding groove is formed in a position of the first connecting seat corresponding to the first pin along a rotational extending direction of the first pin, and an end of the first avoiding groove is communicated with an end of the first sliding groove; and/or the second pin shaft is fixedly arranged on the base, a second avoiding groove is formed in the position, corresponding to the second pin shaft, of the second connecting seat along the rotating extending direction of the second pin shaft, and one end of the second avoiding groove is communicated with one end of the second sliding groove.
Further, when the base rotates relative to the second connecting seat, the first pin shaft slides and rotates relatively in the first sliding groove, so that the first connecting seat is driven to rotate relative to the second connecting seat, and the second pin shaft slides in the second avoiding groove along the length direction of the second avoiding groove; when the base rotates relative to the first connecting seat, the second pin shaft slides and rotates relatively in the second sliding groove, so that the second connecting seat is driven to rotate relative to the first connecting seat, and the first pin shaft slides in the first avoiding groove along the length direction of the first avoiding groove.
According to some embodiments of the present invention, the first pin and the second pin are respectively located at two sides of the second rotating shaft, and the first pin and the second pin are also respectively located at two sides of the base rod; and/or the first sliding chute and the second sliding chute are respectively positioned above the first rotating shaft.
According to some embodiments of the present invention, the second rotating shaft is fixedly disposed on the base, an arc-shaped first limiting groove with an axis of the first rotating shaft as a center of a circle is formed in a position of the first connecting seat corresponding to the second rotating shaft, an arc-shaped second limiting groove with an axis of the first rotating shaft as a center of a circle is formed in a position of the second connecting seat corresponding to the second rotating shaft, when the base rotates relative to the second connecting seat, the second rotating shaft slides in the first limiting groove along a length direction of the first limiting groove, and the second rotating shaft always abuts against one end of the second limiting groove; when the base rotates relative to the first connecting seat, the second rotating shaft slides in the second limiting groove along the length direction of the second limiting groove, and the second rotating shaft always abuts against one end of the first limiting groove.
According to some embodiments of the utility model, the first shaft is located below the second shaft.
The utility model adopts another technical scheme that: the utility model provides a children's shallow, is in including shallow frame, the setting that has folding and expansion state the front wheel subassembly in the place ahead at the bottom of the shallow frame and the setting are in the rear wheel subassembly in the place ahead at the bottom of the shallow frame, shallow frame includes that push rod, bottom are provided with the fore-stock and the bottom of front wheel subassembly are provided with the rear carriage of rear wheel subassembly, through the aforesaid between push rod, fore-stock and the rear carriage rotation joint connect, wherein, the lower part of push rod sets up the base, the upper portion of fore-stock sets up first connecting seat, the upper portion of rear carriage sets up the second connecting seat.
The push rod has a forward using state and a reverse using state, the push frame has a first folding state after being folded from the forward using state of the push rod and a second folding state after being folded from the reverse using state of the push rod, when the push frame is folded from the forward using state of the push rod, the push rod is driven to rotate and approach relative to the rear support, the base rotates relative to the second connecting seat, the first linkage unit is linked with the first connecting seat to rotate relative to the second connecting seat, the front support rotates and approaches relative to the rear support, and when the push frame is in the first folding state, the push rod and the rear support are located on the rear side of the front support in the front-rear direction; when the stroller frame is folded under the condition that the push rod is used reversely, the push rod is driven to rotate and draw close relative to the front support, the second linkage unit is linked with the second connecting seat to rotate relative to the first connecting seat, so that the rear support rotates and draws close relative to the front support, and when the stroller frame is in the second folding state, the push rod and the front support are positioned on the front side of the rear support in the front-back direction.
In some preferred and specific embodiments, the first connecting seat, the base and the second connecting seat are sequentially arranged in the left-right direction of the stroller.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
according to the rotating joint, when the base rotates relative to the second connecting seat, the first linkage unit is linked with the first connecting seat to rotate relative to the second connecting seat, and when the base rotates relative to the first connecting seat, the second linkage unit is linked with the second connecting seat to rotate relative to the first connecting seat, so that the base can rotate in different states and can be linked with the first connecting seat and the second connecting seat to rotate, operation steps are simplified, the rotating joint is simple in structure, and is used for a child stroller, the structure of the child stroller is simplified, and the whole body is lighter.
Drawings
FIG. 1 is a side view of a stroller according to an embodiment of the present invention in a deployed state (with the push rod in use);
FIG. 2 is an enlarged view of the point A in FIG. 1;
fig. 3 is a schematic perspective view of the stroller of an embodiment of the present invention in a deployed state (with the push rod in use in the forward direction);
FIG. 4 is a side view of the stroller in a semi-collapsed configuration (push bar in use) in accordance with one embodiment of the present invention;
FIG. 5 is an enlarged view of the point B in FIG. 4;
fig. 6 is a schematic perspective view of a stroller according to an embodiment of the present invention in a semi-folded state (with the push rod in use in the forward direction);
FIG. 7 is a side view of the stroller in a first collapsed position in accordance with an embodiment of the present invention;
FIG. 8 is an enlarged view of FIG. 7 at C;
fig. 9 is a perspective view of a stroller in a first folded state according to an embodiment of the present invention;
FIG. 10 is a side view of the stroller in a deployed configuration (push bar reversed use) in accordance with one embodiment of the present invention;
FIG. 11 is an enlarged view of FIG. 10 at D;
FIG. 12 is a schematic perspective view of a stroller according to an embodiment of the present invention in a deployed state (with the push rod in reverse use);
FIG. 13 is a side view of the stroller in a semi-collapsed configuration (push bar used in reverse) in accordance with one embodiment of the present invention;
FIG. 14 is an enlarged view of E in FIG. 13;
FIG. 15 is a schematic perspective view of a stroller according to an embodiment of the present invention in a semi-folded state (with the push rod in reverse use);
fig. 16 is a side view of the stroller in a second folded configuration (push bar reversed);
FIG. 17 is an enlarged view at F of FIG. 16;
fig. 18 is a perspective view of the stroller in a second folded position (with the push rod reversed) in accordance with an embodiment of the present invention;
fig. 19 is an exploded isometric view of a stroller in accordance with an embodiment of the present invention;
FIG. 20 is an exploded side view schematic illustration of a stroller in accordance with an embodiment of the present invention;
FIG. 21 is an enlarged view at G of FIG. 20;
fig. 22 is a schematic side view of the stroller with the seat frame in the unfolded state according to the embodiment of the present invention (the push rod is used in the forward direction and the seat frame is installed in the forward direction);
fig. 23 is a schematic perspective view of the stroller in an unfolded state after the cradle is mounted on the stroller (the push rod is used in a forward direction and the cradle is mounted in a forward direction);
fig. 24 is a side view schematically illustrating the structure of the baby stroller in a first folded state after the cradle is mounted thereon (the push rod is used in a forward direction and the cradle is mounted in a forward direction) according to an embodiment of the present invention;
fig. 25 is a schematic perspective view of the stroller in a first folded state after the cradle is mounted on the cradle according to the embodiment of the present invention (the push rod is used in a forward direction and the cradle is mounted in a forward direction);
fig. 26 is a side view schematically illustrating the unfolded state of the stroller with the cradle according to the embodiment of the present invention (the push rod is used in a reverse direction and the cradle is installed in a forward direction);
fig. 27 is a schematic perspective view of the stroller in an unfolded state after the cradle is mounted on the stroller (the push rod is used in a reverse direction and the cradle is mounted in a forward direction);
fig. 28 is a side view of the stroller with the docking stand in a second folded state (with the push rod used in a reverse direction and the docking stand installed in a forward direction) according to an embodiment of the present invention;
fig. 29 is a schematic perspective view of the stroller in a second folded state after the cradle is mounted on the stroller (the push rod is used in a reverse direction and the cradle is mounted in a forward direction);
fig. 30 is a schematic side view of the stroller with the docking stand installed and the stroller is unfolded (with the push rod being used in the forward direction and the docking stand being installed in the reverse direction);
fig. 31 is a schematic perspective view of the stroller in an unfolded state after the cradle is mounted thereon (the push rod is used in a forward direction and the cradle is mounted in a reverse direction) according to an embodiment of the present invention;
fig. 32 is a side view schematically illustrating the structure of the stroller in a first folded state after the cradle is mounted thereon (the push rod is used in a forward direction and the cradle is mounted in a reverse direction) according to an embodiment of the present invention;
fig. 33 is a schematic perspective view of the stroller in a first folded state after the cradle is mounted on the cradle according to the embodiment of the present invention (the push rod is used in a forward direction and the cradle is mounted in a reverse direction);
fig. 34 is a side view schematically illustrating the unfolded state of the stroller with the cradle according to the embodiment of the present invention (the push rod is used in a reverse direction and the cradle is installed in a reverse direction);
fig. 35 is a schematic perspective view of the stroller in an unfolded state after the cradle is mounted on the stroller (the push rod is used in a reverse direction and the cradle is mounted in a reverse direction);
fig. 36 is a side view of the stroller with the docking stand in a second folded state (with the push rod reversed and the docking stand reversed);
fig. 37 is a schematic perspective view of the stroller in a second folded state after the cradle is mounted thereon (the push rod is used in a reverse direction and the cradle is mounted in a reverse direction) according to an embodiment of the present invention;
in the figure: 100. a cart frame; 200. a stump frame is seated;
1. a push rod; 2. a front bracket; 3. a rear bracket; 4. a front wheel assembly; 5. a rear wheel assembly; 6. a first rotating shaft; 7. a second rotating shaft; 8. a first pin shaft; 9. a second pin shaft; 10. a first chute; 11. a second chute; 12. a first avoidance slot; 13. a second avoidance slot; 14. a first limit groove; 15. a second limit groove; 16. a base; 17. a first connecting seat; 18. a second connecting seat; p, a first intersection point; q, a second intersection point; m, a first end portion; n, a second end.
Detailed Description
The utility model is further described with reference to the drawings and the specific embodiments in the following description:
referring to fig. 1 to 21, the stroller includes a stroller frame 100 in a folded and unfolded state, a front wheel assembly 4 disposed in front of a bottom of the stroller frame 100, a rear wheel assembly 5 disposed in rear of the bottom of the stroller frame 100, and a locking mechanism for locking the stroller frame 100 in the unfolded state, the stroller frame 100 includes a push rod 1, a front support 2 having the front wheel assembly 4 at a bottom thereof, and a rear support 3 having the rear wheel assembly 5 at a bottom thereof, and the push rod 1, the front support 2, and the rear support 3 are connected by a rotational joint.
The rotary joint comprises a base 16, a first connecting seat 17 and a second connecting seat 18 which are mutually and rotatably connected, wherein the base 16 is fixedly arranged at the lower end part of the push rod 1, the first connecting seat 17 is fixedly arranged at the upper end part of the front support 2, the second connecting seat 18 is fixedly arranged at the upper end part of the rear support 3, the first connecting seat 17 and the second connecting seat 18 are rotatably connected through a first rotating shaft 6, the first connecting seat 17 and the second connecting seat 18 are also rotatably connected with the base 16 through a second rotating shaft 7, the axial lead of the first rotating shaft 6 and the axial lead of the second rotating shaft 7 are arranged in parallel, a first linkage unit is arranged between the first connecting seat 17 and the base 16, a second linkage unit is arranged between the second connecting seat 18 and the base 16, when the base 16 rotates around the second rotating shaft 7 relative to the second connecting seat 18 along a first direction, the first connecting seat 17 is linked with the second connecting seat 18 to rotate around the first rotating shaft 6 along a second direction opposite to the first direction, namely, the first linkage unit is used for linking the front bracket 2 to rotate around the first rotating shaft 6 relative to the rear bracket 3 when the push rod 1 rotates around the second rotating shaft 7 relative to the rear bracket 3; the second linkage unit links the second connecting seat 18 to rotate around the first rotating shaft 6 in the first direction relative to the first connecting seat 17 when the base 16 rotates around the second rotating shaft 7 in the second direction relative to the first connecting seat 17, that is, the second linkage unit links the rear bracket 3 to rotate relative to the front bracket 2 when the push rod 1 rotates relative to the front bracket 2.
The first linkage unit comprises a first pin shaft 8 arranged on the base 16 and a first chute 10 arranged on the first connecting seat 17, the first pin shaft 8 is inserted in the first chute 10 in a sliding and rotating fit manner, and the axis of the first pin shaft 8 is parallel to the axis of the first rotating shaft 6 or the axis of the second rotating shaft 7; the second linkage unit comprises a second pin shaft 9 arranged on the base 16 and a second chute 11 arranged on the second connecting seat 18, the second pin shaft 9 is inserted in the second chute 11 in a sliding and rotating fit manner, and the axis of the second pin shaft 9 is parallel to the axis of the first rotating shaft 6 or the axis of the second rotating shaft 7. In the left and right direction of the stroller, the first connecting seat 17, the base 16 and the second connecting seat 18 are sequentially arranged, so that the rotation of the first connecting seat 17 and the second connecting seat 18 is not interfered with each other.
Referring to fig. 21, a first pin 8 is fixedly arranged on a base 16, a first sliding groove 10 is formed in a first connecting seat 17, a first avoidance groove 12 is formed in a position, corresponding to the first pin 8, of the first connecting seat 17 along the rotation extending direction of the first pin 8, the first avoidance groove 12 is used for avoiding the first pin 8, one end of the first avoidance groove 12 is communicated with one end of the first sliding groove 10, and a joint where the first avoidance groove 12 is connected with the first sliding groove 10 is marked as a first intersection point P; the second pin shaft 9 is fixedly arranged on the base 16, the second sliding groove 11 is formed in the second connecting seat 18, a second avoiding groove 13 is formed in the position, corresponding to the second pin shaft 9, of the second connecting seat 18 in the rotating extending direction of the second pin shaft 9, the second avoiding groove 13 is used for avoiding the second pin shaft 9, one end portion of the second avoiding groove 13 is communicated with one end portion of the second sliding groove 11, and the connecting position where the second avoiding groove 13 is connected with the second sliding groove 11 is marked as a second intersection point Q. When the push rod 1 rotates relative to the rear bracket 3, the first pin shaft 8 slides and rotates relatively in the first sliding groove 10, so that the front bracket 2 is driven to rotate relative to the rear bracket 3, and the second pin shaft 9 slides in the second avoidance groove 13 along the length direction of the second avoidance groove 13; when the push rod 1 rotates relative to the front bracket 2, the second pin 9 slides and rotates relatively in the second sliding groove 11, so as to drive the rear bracket 3 to rotate relative to the front bracket 2, and the first pin 8 slides in the first avoidance groove 12 along the length direction of the first avoidance groove 12.
The second rotating shaft 7 is fixedly arranged on the base 16, the first connecting seat 17, the base 16 and the second connecting seat 18 are sequentially arranged in the extending direction of the axis of the first rotating shaft 6, the second rotating shaft 7 penetrates and is fixedly arranged on the base 16, and in the extending direction of the axis of the first rotating shaft 6, the first pin shaft 8 is positioned on one side of the base 16, and the second pin shaft 9 is positioned on the second side of the base 16; the first pin shaft 8 and the second pin shaft 9 are also respectively positioned at two sides of the second rotating shaft 7; the first sliding chute 10, the second sliding chute 11, the first avoidance groove 12 and the second avoidance groove 13 are respectively positioned above the first rotating shaft 6; the first rotating shaft 6 is located below the second rotating shaft 7.
An arc-shaped first limiting groove 14 which takes the axis of the first rotating shaft 6 as the center of a circle is formed in the position, corresponding to the second rotating shaft 7, of the first connecting seat 17, the first limiting groove 14 is intersected with the first avoidance groove 12, the intersection point is located above the first intersection point P, the first limiting groove 14 is provided with a first end portion M, and the first avoidance groove 12 is an arc-shaped groove which takes the center of the first end portion M as the center of a circle; an arc-shaped second limiting groove 15 with the axis of the first rotating shaft 6 as the center of a circle is formed in the position, corresponding to the second rotating shaft 7, of the second connecting seat 18, the second limiting groove 15 intersects with the second avoiding groove 12, the position of the intersection point is located above the second intersection point Q, the second limiting groove 15 is provided with a second end portion N, and the second avoiding groove 13 is an arc groove formed with the center of the second end portion N as the center of a circle.
When the push rod 1 rotates relative to the rear bracket 3, the second rotating shaft 7 slides in the first limiting groove 14 along the length direction of the first limiting groove 14, and the second rotating shaft 7 always abuts against one end part of the second limiting groove 15, namely the second rotating shaft 7 always abuts against the second end part N of the second limiting groove 15; when the push rod 1 rotates relative to the front bracket 2, the second rotating shaft 7 slides in the second limiting groove 15 along the length direction of the second limiting groove 15, and the second rotating shaft 7 always abuts against one end of the first limiting groove 14, i.e., the second rotating shaft 7 always abuts against the first end M of the first limiting groove 14.
In this example, the lock mechanism for locking the stroller frame in the unfolded state is not a design point of the present invention, and the conventional art can be adopted, and the present invention is not limited thereto.
The working principle of the baby stroller is as follows:
referring to fig. 1 to 3, the stroller is in an unfolded state and the push rod 1 is in a forward use state, the push rod 1, the front support 2 and the rear support 3 are unfolded relatively, the push rod 1 is inclined and extended from bottom to top along the front-rear direction of the stroller, the second rotating shaft 7 is respectively located at the first end M of the first limiting groove 14 and the second end N of the second limiting groove 15, the first rotating shaft, the second rotating shaft and the third rotating shaft are abutted against each other, the first pin shaft 8 is located at the intersection of the first sliding groove 10 and the first avoidance groove 12, namely the first pin shaft 8 is located at the first intersection point P, and the second pin shaft 9 is located in the second avoidance groove 13.
When the child stroller needs to be folded, the locking mechanism is unlocked, the push rod 1 is pressed downwards and drives the push rod 1 to rotate around the second rotating shaft 7 to approach the rear bracket 3, referring to fig. 4-6, during the rotation process, the second rotating shaft 7 slides in the first limiting groove 14 along the length direction of the first limiting groove 14 and the second rotating shaft 7 always abuts against the second end portion N of the second limiting groove 15, the first pin shaft 8 slides downwards into the first sliding groove 10 from the position of the first intersection point P and abuts against the side wall of the first sliding groove 10 and rotates relatively, so as to drive the first connecting seat 17 to rotate around the first rotating shaft 6 relative to the second connecting seat 18, namely the front bracket 2 rotates around the first rotating shaft 6 relative to the rear bracket 3 to approach, the second pin shaft 9 slides in the second avoiding groove 13 along the length direction of the second avoiding groove 13, namely when the push rod 1 rotates relative to the rear bracket 3 to approach, the front bracket 2 is linked to rotate towards the rear bracket 3 to approach, and finally, folding is finished. After the folding is completed, referring to fig. 7 to 9, the stroller is in the first folding state, the push rod 1 and the rear bracket 3 are located at the rear side of the front bracket 2 in the front-rear direction, and the push rod 1 is located behind the rear bracket 3. When the child stroller is unfolded, the opposite operation is adopted, namely the push rod 1 is upwards rotated and unfolded relative to the rear support 3, the linkage front support 2 is rotated and unfolded relative to the rear support 3 until the child stroller is completely unfolded, then the locking mechanism is locked, the unfolding is completed, and the operation is very simple and convenient.
When the stroller is in the unfolded state and the push rod 1 needs to be reversed, if the push rod 1 is used in the forward direction and the reverse direction, the locking mechanism only needs to be unlocked, the push rod 1 rotates around the second rotating shaft 7 towards the front support 2 close to the stroller, during the rotating process, the second rotating shaft 7 is always located at the first end portion M of the first limiting groove 14, the second end portion N of the second limiting groove 15 and the three are abutted, the first pin shaft 8 rotates into the first avoiding groove 12, the second pin shaft 9 rotates in the second avoiding groove 13 to the intersection of the second avoiding groove 13 and the second sliding groove 11, namely the second pin shaft 9 rotates to the position of the second intersection point Q, the locking mechanism is locked, and the push rod 1 is reversed, as shown in fig. 10-12.
When the stroller with the push rod 1 in the reverse use state needs to be folded, the locking mechanism is unlocked, the push rod 1 is pressed downwards and drives the push rod 1 to rotate around the second rotating shaft 7 to approach the front bracket 2, as shown in fig. 13-15, during the rotation process, the second rotating shaft 7 slides in the second limiting groove 15 along the length direction of the second limiting groove 15 and the second rotating shaft 7 always abuts against the first end M of the first limiting groove 14, the second pin shaft 9 slides downwards from the position of the second intersection point Q into the second sliding groove 11 and abuts against the side wall of the second sliding groove 11 and rotates relatively, so as to drive the second connecting seat 18 to rotate around the first rotating shaft 6 relative to the first connecting seat 17, that is, the rear bracket 3 rotates around the first rotating shaft 6 relative to the front bracket 2 to approach, the first pin shaft 8 slides in the first avoiding groove 12 along the length direction of the first avoiding groove 12, that is, when the push rod 1 rotates relative to approach the front bracket 2, the linkage rear bracket 3 rotates towards the front bracket 2 to get close, and finally folding is finished. After the folding is completed, referring to fig. 16 to 18, the stroller is in the second folded state, the push rod 1 and the front bracket 2 are located at the front side of the rear bracket 3 in the front-rear direction, and the push rod 1 is located in front of the front bracket 2. When the stroller is unfolded, the opposite operation is adopted, namely the push rod 1 is upwards rotated and unfolded relative to the front support 2, the linkage rear support 3 is rotated and unfolded relative to the front support 2 until the stroller is completely unfolded, then the locking mechanism is locked, the unfolding is completed, and the operation is very simple and convenient.
Referring to fig. 22 to 37, the seat pocket 200 can be further installed on the stroller, the seat pocket 200 can be folded and unfolded, the seat pocket 200 can be further installed in a forward direction and installed in a reverse direction, the push rod 1 can be reversed and the stroller can be folded regardless of whether the seat pocket 200 is installed in the forward direction or the reverse direction, and the folding of the stroller is not interfered by the seat pocket 200.
Specifically, as shown in fig. 22 to 23, the push rod 1 is used in the forward direction, the seat pocket frame 200 is installed in the forward direction, when the stroller frame 100 needs to be folded, the push rod 1 is pressed downward and the push rod 1 rotates and draws close relative to the rear support 3, the front support 2 is linked to rotate and draws close to the rear support 3, the stroller frame 100 is finally folded, meanwhile, the backrest rod of the seat pocket frame 200 is folded in the direction close to the front support 2, and the folded stroller is shown in fig. 24 to 25.
Referring to fig. 26 to 27, the push rod 1 is used in a reverse direction, the seat pocket 200 is installed in a forward direction, when the stroller frame 100 needs to be folded, the push rod 1 is unlocked, the push rod 1 is pressed downward and rotates relative to the front support 2, the rear support 3 is linked to rotate towards the front support 2, the stroller frame 100 is folded, meanwhile, the back rod of the seat pocket 200 is turned over towards the direction close to the front support 2 to fold the seat pocket 200, and the folded stroller is as shown in fig. 28 to 29.
Referring to fig. 30 to 31, the push rod 1 is used in the forward direction, the seat pocket frame 200 is installed in the reverse direction, when the stroller frame 100 needs to be folded, the push rod 1 is pressed downward to enable the push rod 1 to rotate and approach to the rear support 3, the front support 2 is linked to rotate and approach to the rear support 3, the stroller frame 100 is finally folded, meanwhile, the backrest rod of the seat pocket frame 200 is turned over towards the direction close to the rear support 3 to fold the seat pocket frame 200, and the folded stroller is as shown in fig. 32 to 33.
Referring to fig. 34 to 35, the push rod 1 is used in a reverse direction, the seat pocket frame 200 is installed in a reverse direction, when the stroller frame 100 needs to be folded, the push rod 1 is pressed downward to enable the push rod 1 to rotate and approach to the front support frame 2, the rear support frame 3 is linked to rotate and approach to the front support frame 2, the stroller frame 100 is finally folded, meanwhile, the backrest rod of the seat pocket frame 200 is turned over towards the direction close to the rear support frame 3 to fold the seat pocket frame 200, and the folded stroller is as shown in fig. 36 to 37.
In a word, through the arrangement, the stroller can be folded and unfolded in a linkage manner when the push rod 1 is used in the forward direction and the reverse direction, and the push rod 1 can be pushed when the push rod 1 is used in the forward direction and the reverse direction. The seat pocket frame 200 is assembled on the stroller frame 100, the seat pocket frame 200 can also be installed in the forward direction and the reverse direction, and when the stroller frame 100 is folded, the seat pocket frame 200 can be installed in the forward direction and the reverse direction, so that the folding of the stroller frame 100 is not influenced.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the utility model, and not to limit the scope of the utility model, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a rotary joint, includes base, first connecting seat and second connecting seat, its characterized in that: the first connecting seat and the second connecting seat are rotationally connected through a first rotating shaft, a second rotating shaft is arranged among the first connecting seat, the second connecting seat and the base, the axial lead of the first rotating shaft and the axial lead of the second rotating shaft are arranged in parallel, a first linkage unit is arranged between the first connecting seat and the base, a second linkage unit is arranged between the second connecting seat and the base, the first linkage unit links the first connecting seat to rotate around the first rotating shaft along a second direction opposite to the first direction relative to the second connecting seat when the base rotates around the second rotating shaft along the first direction relative to the second connecting seat, the second linkage unit is used for linking the second connecting seat to rotate around the first rotating shaft along the first direction relative to the first connecting seat when the base rotates around the second rotating shaft along the second direction relative to the first connecting seat.
2. The revolute joint of claim 1, wherein: the first linkage unit comprises a first pin shaft arranged on the base and a first chute arranged on the first connecting seat, the first pin shaft is inserted in the first chute in a sliding and rotating fit manner, and the axis of the first pin shaft is parallel to the axis of the first rotating shaft or the axis of the second rotating shaft; and/or the second linkage unit comprises a second pin shaft arranged on the base and a second chute arranged on the second connecting seat, the second pin shaft is inserted in the second chute in a sliding and rotating fit manner, and the axis of the second pin shaft is arranged in parallel with the axis of the first rotating shaft or the axis of the second rotating shaft.
3. The revolute joint of claim 2, wherein: the first pin shaft is fixedly arranged on the base, a first avoidance groove is formed in the position, corresponding to the first pin shaft, of the first connecting seat along the rotating extending direction of the first pin shaft, and one end of the first avoidance groove is communicated with one end of the first sliding groove; and/or the second pin shaft is fixedly arranged on the base, a second avoiding groove is formed in the position, corresponding to the second pin shaft, of the second connecting seat along the rotating extending direction of the second pin shaft, and one end of the second avoiding groove is communicated with one end of the second sliding groove.
4. The revolute joint of claim 3, wherein: when the base rotates relative to the second connecting seat, the first pin shaft slides and rotates relatively in the first sliding groove, so that the first connecting seat is driven to rotate relative to the second connecting seat, and the second pin shaft slides in the second avoiding groove along the length direction of the second avoiding groove; when the base rotates relative to the first connecting seat, the second pin shaft slides and rotates relatively in the second sliding groove, so that the second connecting seat is driven to rotate relative to the first connecting seat, and the first pin shaft slides in the first avoiding groove along the length direction of the first avoiding groove.
5. The revolute joint of claim 2, wherein: the first pin shaft and the second pin shaft are respectively positioned at two sides of the second rotating shaft, and the first pin shaft and the second pin shaft are also respectively positioned at two sides of the base; and/or the first sliding chute and the second sliding chute are respectively positioned above the first rotating shaft.
6. A revolute joint according to any one of claims 1 to 5, wherein: the second rotating shaft is fixedly arranged on the base, an arc-shaped first limiting groove which takes the axis of the first rotating shaft as the center of a circle is formed in the position, corresponding to the second rotating shaft, of the first connecting seat, an arc-shaped second limiting groove which takes the axis of the first rotating shaft as the center of a circle is formed in the position, corresponding to the second rotating shaft, of the second connecting seat, when the base rotates relative to the second connecting seat, the second rotating shaft slides in the first limiting groove along the length direction of the first limiting groove, and the second rotating shaft is always abutted against one end of the second limiting groove; when the base rotates relative to the first connecting seat, the second rotating shaft slides in the second limiting groove along the length direction of the second limiting groove, and the second rotating shaft always abuts against one end of the first limiting groove.
7. A revolute joint according to any one of claims 1 to 5, wherein: the first rotating shaft is positioned below the second rotating shaft.
8. The utility model provides a children's shallow, is in including the shallow frame that has folding and expansion state, setting the front wheel subassembly in the place ahead at the bottom of the shallow frame and setting are in the rear wheel subassembly in the place behind the bottom of the shallow frame, the shallow frame includes that push rod, bottom are provided with the fore-stock and the bottom of front wheel subassembly are provided with the after-poppet of rear wheel subassembly, its characterized in that: the push rod, the front support and the rear support are connected through a rotating joint as claimed in any one of claims 1 to 7, wherein the base is arranged at the lower part of the push rod, the first connecting seat is arranged at the upper part of the front support, and the second connecting seat is arranged at the upper part of the rear support.
9. The stroller of claim 8, wherein: the push rod has a forward using state and a reverse using state, the push frame has a first folding state after being folded from the forward using state of the push rod and a second folding state after being folded from the reverse using state of the push rod, when the push frame is folded from the forward using state of the push rod, the push rod is driven to rotate and approach relative to the rear support, the base rotates relative to the second connecting seat, the first linkage unit is linked with the first connecting seat to rotate relative to the second connecting seat, the front support rotates and approaches relative to the rear support, and when the push frame is in the first folding state, the push rod and the rear support are positioned on the rear side of the front support in the front-rear direction; when the stroller frame is folded under the condition that the push rod is used reversely, the push rod is driven to rotate and draw close relative to the front support, the second linkage unit is linked with the second connecting seat to rotate relative to the first connecting seat, so that the rear support rotates and draws close relative to the front support, and when the stroller frame is in the second folding state, the push rod and the front support are positioned on the front side of the rear support in the front-back direction.
10. The stroller of claim 8, wherein: in the left and right directions of the baby stroller, the first connecting seat, the base and the second connecting seat are sequentially arranged.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121811241.6U CN216140044U (en) | 2021-08-04 | 2021-08-04 | Rotary joint and stroller comprising same |
| PCT/CN2022/099295 WO2023011017A1 (en) | 2021-08-04 | 2022-06-17 | Rotating joint and child product having rotating joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121811241.6U CN216140044U (en) | 2021-08-04 | 2021-08-04 | Rotary joint and stroller comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216140044U true CN216140044U (en) | 2022-03-29 |
Family
ID=80804105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121811241.6U Active CN216140044U (en) | 2021-08-04 | 2021-08-04 | Rotary joint and stroller comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216140044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023011017A1 (en) * | 2021-08-04 | 2023-02-09 | 好孩子儿童用品有限公司 | Rotating joint and child product having rotating joint |
-
2021
- 2021-08-04 CN CN202121811241.6U patent/CN216140044U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023011017A1 (en) * | 2021-08-04 | 2023-02-09 | 好孩子儿童用品有限公司 | Rotating joint and child product having rotating joint |
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