CN113978588A

CN113978588A - Baby carriage capable of being folded in staggered mode

Info

Publication number: CN113978588A
Application number: CN202111356695.3A
Authority: CN
Inventors: 姜兵
Original assignee: Zhejiang Xijiadeng Technology Co ltd
Current assignee: Zhejiang Xijiadeng Technology Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-01-28

Abstract

The invention provides a baby carriage capable of being folded in a staggered mode, and belongs to the technical field of baby carriages. It has solved the little scheduling problem of current bassinet folding range. The folding device comprises a frame, and a front wheel, a rear wheel, a handle and a seat which are arranged on the frame, wherein a front reference surface is arranged on a front wheel frame, a rear reference surface is arranged on a rear wheel frame, the front wheel frame is rotationally connected to the rear wheel frame through a rotating structure, a folding center is formed through the rotating structure, the folding center and the rear reference surface are in a non-vertical crossing state, when the front wheel frame is unfolded in place, the front reference surface is overlapped with the rear reference surface, and the front reference surface gradually inclines and deviates from the rear reference surface in the process of rotating and folding the front wheel frame relative to the rear wheel frame. The folding device has the advantages that the front wheels and the rear wheels can be staggered when being folded, the folding range is large, the size is small after being folded, and the folding is convenient.

Description

Baby carriage capable of being folded in staggered mode

Technical Field

The invention belongs to the technical field of baby carriages, relates to folding of baby carriages, and particularly relates to a baby carriage capable of being folded in a staggered mode.

Background

The prior baby carriage is usually designed into a folding form for convenient carrying and storage, and for the double-wheel baby carriage, because the front wheels and the rear wheels are on the same plane, the folding amplitude of the baby carriage is very small for preventing the interference of the front wheels and the rear wheels on the folding of the baby carriage if the baby carriage is simply folded on the same plane.

Disclosure of Invention

The invention aims to overcome the defects of folding of the existing baby carrier, and provides the baby carrier with the front wheels and the rear wheels which can be staggered when being folded, large folding amplitude, small volume after being folded and convenient and fast folding.

The purpose of the invention can be realized by the following technical scheme:

a baby carriage capable of being folded in a staggered mode comprises a frame, and a front wheel, a rear wheel, a handle and a seat which are arranged on the frame, wherein the frame comprises a front wheel frame and a rear wheel frame, the front wheel and the handle are arranged on the front wheel frame, the rear wheel and the seat are arranged on the rear wheel frame, a front datum plane is arranged on the front wheel frame, the front wheel can move relative to the front wheel frame, an advancing station of the front wheel is arranged on the front wheel frame, the advancing station is the position of the front wheel relative to the front wheel frame when the baby carriage linearly advances, when the front wheel is located at the advancing station, the rotating center of the front wheel is perpendicular to the front datum plane, a rear datum plane perpendicular to the rotating center of the rear wheel is arranged on the rear wheel frame, the front wheel frame is rotatably connected to the rear wheel frame through a rotating structure, the front wheel frame can rotate relative to the rear wheel frame through the rotating structure to unfold or fold, a folding center is formed through the rotating structure, the front wheel frame rotates relative to the folding center, the folding center and the rear reference surface are in a non-vertical crossing state, when the front wheel frame is unfolded in place, the front reference surface is superposed with the rear reference surface, and the front reference surface gradually inclines and deviates from the rear reference surface in the rotating and folding process of the front wheel frame relative to the rear wheel frame.

In the above-described child vehicle that can be folded in a staggered manner, the center of symmetry of the rear wheel is located on the rear reference plane, and the center of symmetry of the front wheel is located on the front reference plane when the front wheel is located at the forward station.

In the above-mentioned bassinet capable of being folded in a staggered manner, the rear wheel carrier is provided with a chute, the chute is formed by two inclined planes which are parallel to each other, the inclined planes are arranged in a crossed manner with the rear reference plane, an included angle between each inclined plane and the rear reference plane is an acute angle, the folding center is perpendicular to the inclined planes, and the front wheel carrier is provided with a rotating head for rotating in the chute.

In the above-mentioned foldable bassinet, two sides of the rotating head respectively lean against the two inclined planes.

In foretell can misplace folding bassinet, revolution mechanic is including dividing recess, the outer convex part of establishing on rotating head lateral part and inclined plane, recess and outer convex part one-to-one, and the recess is equipped with two and establishes in the both sides of rotating the head separately, and the recess internal surface is the sphere with the surface of outer convex part, and outer convex part inlays to be established in corresponding recess and outer convex part can be relative recess rotation, recess and outer convex part cooperation form above-mentioned folding center.

In the above mentioned foldable baby carriage, the foldable structure further comprises a connecting shaft, and the connecting shaft is inserted into the two outer protrusions and the rotating head.

In the above-mentioned foldable stroller, the connecting shaft is perpendicular to the rear reference surface.

In the above-mentioned foldable bassinet capable of shifting, the rotating structure includes a rotating shaft, the rotating shaft is arranged on the rotating head and the rear wheel frame in a penetrating way, and the axis of the rotating shaft is the folding center.

In foretell foldable bassinet can misplace, revolution mechanic still includes a location structure that makes above-mentioned preceding wheel carrier and back wheel carrier relatively fixed, and location structure includes a piston and sets up the draw-in groove on the wheel carrier of back, and the piston activity sets up on above-mentioned rotation head, the piston rotates with the rotation head all the time synchronous, and the piston can rotate the head relatively and move along above-mentioned folding center extending direction, be equipped with clamping part on the piston, under the effect of an elastic component, clamping part can block into above-mentioned draw-in groove along with the piston motion, the piston can overcome the elastic force effect removal of elastic component under the exogenic action and make clamping part deviate from the draw-in groove.

In the above-mentioned foldable stroller, the connecting shaft or the rotating shaft passes through the piston, the elastic member is a spring, the spring is sleeved on the connecting shaft or the rotating shaft, and the spring is located in the piston.

In the above-mentioned foldable bassinet that can misplace, the piston is located above-mentioned and rotates the head, the piston is cylindricly and with the above-mentioned folding concentric setting of center, above-mentioned clamping part sets up on the piston periphery, clamping part extends along the piston axial, it is equipped with the spacing groove that is used for clamping part embedding to rotate the head, spacing groove and clamping part one-to-one set up, be equipped with the depressed area of indent on the above-mentioned convex part sphere, the piston can insert in the depressed area under the effect of above-mentioned elastic component one end, above-mentioned draw-in groove is seted up on the inner periphery of depressed area.

In foretell folding bassinet can misplace, be equipped with two clamping parts on the piston, two clamping parts set gradually along the piston circumferencial direction, are equipped with two draw-in grooves and two grooves of stepping down in the interior week of above-mentioned depressed area, and two draw-in grooves set up adjacently, and two grooves of stepping down set up adjacently, and the groove width in the groove of stepping down is greater than the groove width of draw-in groove.

In the baby carriage capable of being folded in a staggered mode, the rear wheel carrier is movably provided with the boosting part, the boosting part can be connected with the shaft to move in the axial direction or the extending direction of the folding center, and the boosting part can push the piston to move under the action of external force to overcome the elastic force of the elastic part and move.

In the above-mentioned foldable bassinet capable of shifting, the rotating head is provided with a guide groove, the guide groove extends along the rotating direction of the rotating head, and the rear wheel carrier is provided with a guide part embedded in the guide groove.

In the above-mentioned bassinet capable of being folded in a staggered manner, the outer convex part is arranged on a ball ring, the outer convex part and the ball ring are in one-to-one correspondence, the ball ring is detachably arranged on the front wheel frame, the inclined plane is arranged on the ball ring, the connecting shaft is arranged on the two ball rings in a penetrating manner, and one end of the connecting shaft is connected with a threaded fastener after penetrating through the corresponding ball ring.

In the above-mentioned bassinet capable of being folded in a staggered way, the rear wheel frame is also provided with a shock absorber, the shock absorber is arranged on the rotating path of the front wheel frame or the rotating head, and when the front wheel frame is unfolded in place relative to the rear wheel frame, the front wheel frame or the rotating head is abutted against the shock absorber.

In the above-mentioned foldable baby carriage, when the front wheel frame is unfolded in place, the front wheel frame and the rear wheel frame form an included angle, and the shock absorbing member is located at the included angle.

In the above-mentioned foldable bassinet capable of shifting, the shock absorbing part is located in the above-mentioned guide groove, and when the front wheel frame is unfolded in place, the shock absorbing part is abutted against one end of the guide groove.

Compared with the prior art, the invention has the advantages that:

1. the folding center and the rear reference surface are in a non-vertical cross state, so that the front wheel frame can make the front wheel deviate from the rear wheel in the rotating process of the folding center, the front wheel and the rear wheel are staggered, the front wheel frame and the rear wheel frame can achieve the maximum folding amplitude, the minimum folding volume of the baby carrier can be realized, and the baby carrier is convenient to store and carry.

2. The front wheel frame and the rear wheel frame rotate through the spherical surfaces of the grooves and the outer convex parts, the contact area of the spherical surfaces is large, and the rotation is more stable.

3. The boosting part can be unlocked and rotated by pressing the boosting part, and the boosting part can be locked and fixed by releasing the boosting part, so that the operation is convenient and fast.

Drawings

FIG. 1 is a schematic structural view of a vehicle frame according to a first embodiment;

FIG. 2 is a schematic view of another angle structure of the frame according to the first embodiment;

FIG. 3 is an exploded view of the frame according to the first embodiment;

FIG. 4 is a cross-sectional view of a vehicle frame according to the first embodiment;

FIG. 5 is a schematic structural diagram of the rear wheel frame according to the first embodiment;

fig. 6 is a schematic structural diagram of the ball ring according to the first embodiment.

In the figure, 1, a front wheel frame; 2. a rear wheel carrier; 3. a through hole; 4. grooving; 5. rotating the head; 6. a ball ring; 7. a connecting shaft; 8. a bevel; 9. a groove; 10. an outer convex portion; 11. a guide groove; 12. a guide portion; 13. a piston; 14. a card slot; 15. a locking part; 16. a spring; 17. a recessed region; 18. a yielding groove; 19. a boosting member; 20. a push arm; 21. perforating; 22. a shock absorbing member; 23. and (4) an outer cover.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

The first embodiment is as follows:

as shown in fig. 1 to 6, the stroller capable of being folded in a staggered manner provided by the present invention comprises a frame, and a front wheel, a rear wheel, a handle and a seat arranged on the frame, wherein the frame comprises a front wheel frame 1 and a rear wheel frame 2, the front wheel and the handle are arranged on the front wheel frame 1, the rear wheel and the seat are arranged on the rear wheel frame 2, the front wheel is arranged on the front wheel frame 1 through a front fork, the front wheel changes the advancing direction through the rotation of the front fork, the handle is arranged on the top of the front fork, the front wheel is arranged on the front fork in a rotating manner, the front wheel frame 1 is provided with a front reference surface, the front reference surface is a reference plane, when the stroller is erected, the front reference surface is in a vertical state, the front wheel frame 1 is provided with an advancing station of the front wheel, the advancing station is the position of the front wheel relative to the front wheel frame 1 when the stroller advances in a straight line, i.e. when the front wheel is located in the advancing station, the front wheel faces the straight ahead, the rotating center of the front wheel is perpendicular to the front reference surface, the symmetric center of the front wheel is not the symmetric center of the circumferential radial direction of the front wheel, but the symmetric center of the front wheel with the thickness divided into two parts is positioned on the front reference surface, the rear wheel frame 2 is provided with a rear reference surface which is vertical to the rotating center of the rear wheel, the symmetric center of the rear wheel is not the symmetric center of the circumferential radial direction of the rear wheel, but the symmetric center of the rear wheel with the thickness divided into two parts is always positioned on the rear reference surface, the rear reference surface is also a reference plane, and when the baby carriage is erected, the rear reference surface is in an upright state.

The front wheel frame 1 is rotatably connected to the rear wheel frame 2 through a rotating structure, the front wheel frame 1 can rotate relative to the rear wheel frame 2 through the rotating structure to be unfolded or folded, when the front wheel frame 1 is unfolded in place, the vehicle is in a riding state at the moment, the front reference surface is superposed with the rear reference surface, the front wheel frame 1 forms a folding center through the rotating structure, the front wheel frame 1 rotates relative to the rear wheel frame 2 around the folding center, the folding center and the rear reference surface are in a non-vertical crossing state, the folding center and the projection of the center of the rear wheel rotation on a horizontal plane or a vertical plane are crossed, and the folding center and the rear reference surface are in the non-vertical crossing state, so that the front reference surface can gradually incline and deviate from the rear reference surface in the rotating and folding process of the front wheel frame 1, the front wheel and the rear wheel can be staggered, the frame can be folded as much as possible, and the maximum folding amplitude can be achieved.

The rear wheel frame 2 is provided with a through hole 3 and a slot 4, the axis of the through hole 3 is parallel to the rotation center of the rear wheel, the slot 4 divides the through hole 3 into two parts, two side walls of the slot 4 are parallel to the rear reference surface, one end of the front wheel frame 1 is provided with a rotating head 5, the rotating head 5 is positioned in the slot 4, the through holes 3 at two sides of the slot 4 are respectively and detachably provided with a ball ring 6, the ball ring 6 and the through hole 3 are concentrically arranged, the two ball rings 6 are connected through a connecting shaft 7, the connecting shaft 7 is concentrically arranged with the ball rings 6, the connecting shaft 7 is arranged on the two ball rings 6 and the rotating head 5 in a penetrating way, one end of the connecting shaft 7 passes through the corresponding ball ring 6 and then is connected with a threaded fastener, the threaded fastener can be a bolt or a nut, and the threaded fastener prevents the ball ring 6 from being separated from the connecting shaft 7;

the two ball rings 6 are respectively provided with an inclined plane 8, the inclined planes 8 of the two ball rings 6 are oppositely arranged, the two inclined planes 8 form a chute, the rotating head 5 is positioned in the chute, two sides of the rotating head 5 are respectively attached to the two inclined planes 8, the inclined planes 8 are not parallel to the rear reference plane in a crossing manner, and an included angle between the inclined planes 8 and the rear reference plane is an acute angle.

The rotating structure comprises grooves 9 and outer convex portions 10 which are respectively arranged on the side portion of the rotating head 5 and the inclined surface 8, the grooves 9 are in one-to-one correspondence with the outer convex portions 10, the grooves 9 are two and are respectively arranged on two sides of the rotating head 5, the outer convex portions 10 and the ball rings 6 are integrally formed, the inner surfaces of the grooves 9 and the outer surfaces of the outer convex portions 10 are spherical surfaces, the outer convex portions 10 are embedded in the corresponding grooves 9 to rotate, the grooves 9 and the outer convex portions 10 are matched to form the folding centers of the front wheel frame 1 and the rear wheel frame 2, and the folding centers are perpendicular to the inclined surface 8.

The upper periphery of the rotating head 5 is provided with a guide groove 11, the guide groove 11 extends along the rotating direction of the rotating head 5, the rear wheel carrier 2 is provided with a guide part 12 embedded in the guide groove 11, the guide part 12 is positioned on the bottom of the slotted groove 4 and is integrally formed with the rear wheel carrier 2, and the guide groove 11 is inclined in the extending process in cooperation with the rotation of the rotating head 5.

The rotating structure also comprises a positioning structure which enables the front wheel frame 1 and the rear wheel frame 2 to be relatively fixed,

the positioning structure comprises a piston 13 and a clamping groove 14 arranged on an outer convex part 10, the piston 13 is positioned in the rotating head 5, the piston 13 is cylindrical and concentrically arranged with a folding center, the piston 13 is provided with an inner hole, a connecting shaft 7 is arranged in the inner hole in a penetrating way, two clamping parts 15 are arranged on the periphery of the piston 13, the clamping parts 15 axially extend along the piston 13, the two clamping parts 15 are sequentially arranged at intervals along the circumferential direction of the piston 13, a limiting groove used for embedding the clamping parts 15 is arranged on the rotating head 5, the two clamping parts 15 are correspondingly arranged in the corresponding limiting grooves one by one, the piston 13 and the rotating head 5 are always synchronously rotated through the matching of the limiting grooves and the clamping parts 15, the piston 13 can move back and forth relative to the rotating head 5 along the extending direction of the folding center, an elastic piece is arranged in the piston 13, the elastic piece is a spring 16, the connecting shaft 7 passes through the spring 16, the spring 16 is elastically leaned on the piston 13 and the rotating head 5, wherein, an inner concave depressed area 17 is arranged on the spherical surface of one outer convex part 10, the clamping groove 14 is arranged on the inner circumference of the depressed area 17, the clamping groove 14 is corresponding to the clamping parts 15 one by one, the clamping groove 14 is corresponding to the cross section of the clamping part 15, two abdicating grooves 18 are also arranged on the inner circumference of the depressed area 17, the groove width of the abdicating groove 18 is larger than the groove width of the clamping groove 14, the two clamping grooves 14 are adjacently arranged, the two abdicating grooves 18 are adjacently arranged, one end of the piston 13 can be inserted into the depressed area 17 under the action of the spring 16, the clamping part 15 can be clamped into the clamping groove 14 or the abdicating groove 18, the rear wheel carrier 2 is movably provided with a boosting member 19, the boosting member 19 is concentrically arranged in the ball ring 6, the boosting member 19 is simultaneously used for sealing the ball ring 6, the outer cover 23 is concentrically arranged on the other ball ring 6, the boosting member 19 is provided with a pushing arm 20, the outer convex part 10 corresponding to the ball ring 6 is provided with a through hole 21 for the pushing arm 20 to pass through the contact piston 13, the boosting member 19 can move axially along the ball ring 6, the external force pushes the outer side surface of the boosting member 19 to push the piston 13 to move against the acting force of the spring 16 to be separated from the recessed area 17, the clamping part 15 is separated from the clamping groove 14 or the abdicating groove 18, and after the piston 13 is separated from the recessed area 17, the rotating head 5 can rotate freely.

The rear wheel frame 2 is further provided with a shock absorbing member 22, the shock absorbing member 22 is a flexible member, the shock absorbing member 22 is made of rubber, the shock absorbing member 22 is arranged on the rotation path of the front wheel frame 1, when the front wheel frame 1 is unfolded in place relative to the rear wheel frame 2, an included angle is formed between the wheel frame and the rear wheel frame 2, the shock absorbing member 22 is located at the included angle, and at the moment, the front wheel frame 1 abuts against the shock absorbing member 22.

The shock absorbing element 22 can also be arranged in the path of rotation of the rotary head 5, for example, the shock absorbing element 22 is arranged on the bottom of the slot 4, the shock absorbing element 22 is partially inserted in the guide slot 11, and when the front wheel frame 1 is unfolded in place, the shock absorbing element 22 abuts against one end of the guide slot 11.

Example two:

different from the first embodiment, the rotating structure includes a rotating shaft which forms a folding center in place of the groove 9 and the convex portion 10 of the first embodiment, and the rotating shaft replaces the connecting shaft 7 of the first embodiment.

It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be interpreted in an open-ended sense, i.e., in a sense equivalent to "including at least … …", and not in a closed sense, i.e., in a sense not to be interpreted as "including only … …".

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A baby carriage capable of being folded in a staggered mode comprises a frame, and a front wheel, a rear wheel, a handle and a seat which are arranged on the frame, wherein the frame comprises a front wheel frame (1) and a rear wheel frame (2), the front wheel and the handle are arranged on the front wheel frame (1), and the rear wheel and the seat are arranged on the rear wheel frame (2), and the baby carriage is characterized in that a front reference surface is arranged on the front wheel frame (1), the front wheel can move relative to the front wheel frame (1), an advancing station of the front wheel is arranged on the front wheel frame (1), the advancing station is the position of the front wheel relative to the front wheel frame (1) when the baby carriage linearly advances, when the front wheel is located at the advancing station, the rotating center of the front wheel is vertical to the front reference surface, a rear reference surface vertical to the rotating center of the rear wheel is arranged on the rear wheel frame (2), the front wheel frame (1) is rotatably connected to the rear wheel frame (2) through a rotating structure, and the front wheel frame (1) can rotate relative to the rear wheel frame (2) through the rotating structure to unfold or fold, a folding center is formed through a rotating structure, the front wheel frame (1) rotates relative to the rear wheel frame (2) around the folding center, the folding center and the rear reference surface are in a non-vertical crossing state, when the front wheel frame (1) is unfolded in place, the front reference surface and the rear reference surface are overlapped, and the front reference surface gradually inclines and deviates from the rear reference surface in the rotating and folding process of the front wheel frame (1) relative to the rear wheel frame (2).

2. A foldable malposed stroller according to claim 1, characterized in that said rear wheel frame (2) is provided with a chute formed by two mutually parallel inclined planes (8), the inclined planes (8) being arranged crosswise to said rear reference plane and the angle between the inclined planes (8) and the rear reference plane being an acute angle, said folding center being perpendicular to said inclined planes (8), said front wheel frame (1) being provided with a turning head (5), the turning head (5) being located in the chute.

3. A foldable malposed child's carriage according to claim 2, characterized in that the rotary structure comprises two grooves (9) and two protrusions (10) respectively arranged on the side of the rotary head (5) and the inclined plane (8), the grooves (9) and the protrusions (10) are in one-to-one correspondence, the grooves (9) are arranged on both sides of the rotary head (5), the inner surfaces of the grooves (9) and the outer surfaces of the protrusions (10) are spherical, the protrusions (10) are embedded in the corresponding grooves (9) and the protrusions (10) can rotate relative to the grooves (9), and the grooves (9) and the protrusions (10) cooperate to form the folding center.

4. A foldable malposed stroller according to claim 3, characterized in that the folded malposed structure further comprises a connecting shaft (7), the connecting shaft (7) being inserted through the two protrusions (10) and the rotary head (5).

5. A foldable malposed baby carriage according to claim 2, wherein the rotating structure comprises a rotating shaft, the rotating shaft is arranged on the rotating head (5) and the rear wheel frame (2) in a penetrating way, and the axis of the rotating shaft is the folding center.

6. A malposition foldable stroller according to any of claims 2 to 5, it is characterized in that the rotating structure also comprises a positioning structure which relatively fixes the front wheel frame (1) and the rear wheel frame (2), the positioning structure comprises a piston (13) and a clamping groove (14) arranged on the rear wheel frame (2), the piston (13) is movably arranged on the rotating head (5), the piston (13) and the rotating head (5) rotate synchronously all the time, the piston (13) can move along the extending direction of the folding center relative to the rotating head (5), a clamping part (15) is arranged on the piston (13), under the action of an elastic piece, the clamping part (15) can be clamped into the clamping groove (14) along with the movement of the piston (13), the piston (13) can overcome the elastic force action of the elastic piece to move under the action of external force, so that the clamping part (15) is separated from the clamping groove (14).

7. A foldable but misaligned stroller according to claim 6, wherein the piston (13) is located in the pivot head (5), the piston (13) is cylindrical and is concentrically disposed with the folding center, the locking portion (15) is disposed on the outer periphery of the piston (13), the locking portion (15) extends in the axial direction of the piston (13), the pivot head (5) is provided with a stopper groove for fitting the locking portion (15), the stopper groove and the locking portion (15) are disposed in one-to-one correspondence, the outer protrusion (10) is provided with a concave recessed area (17) on the spherical surface, the piston (13) can be inserted into the recessed area (17) at one end under the action of the elastic member, and the engaging groove (14) is formed on the inner periphery of the recessed area (17).

8. A foldable malposed baby carriage according to claim 7, characterized in that a thrust aid (19) is movably arranged on the rear wheel carrier (2), the thrust aid (19) being capable of being connected to the axle (7) to move axially or in the direction of extension of the folding centre, the thrust aid (19) being capable of pushing the piston (13) to move against the elastic force of the elastic member under the action of an external force.

9. A foldable malposed stroller according to any of claims 2 to 5, characterized in that the swivel head (5) is provided with a guide groove (11), the guide groove (11) extending in the direction of rotation of the swivel head (5), and the rear wheel frame (2) is provided with a guide portion (12) for being fitted in the guide groove (11).

10. A foldable malposed stroller according to claim 9, characterized in that the rear wheel frame (2) is further provided with a shock absorber (22), the shock absorber (22) is arranged on the rotation path of the front wheel frame (1) or the rotating head (5), and when the front wheel frame (1) is unfolded in place relative to the rear wheel frame (2), the front wheel frame (1) or the rotating head (5) abuts against the shock absorber (22).