CN114560005B

CN114560005B - Baby carriage

Info

Publication number: CN114560005B
Application number: CN202210161170.2A
Authority: CN
Inventors: 黄峰
Original assignee: Shenzhen Huibeibei Technology Co ltd
Current assignee: Shenzhen Huibeibei Technology Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2023-08-25
Anticipated expiration: 2042-02-22
Also published as: CN114560005A

Abstract

The application relates to a baby carriage, which comprises two groups of folding units which are arranged at intervals along the left-right direction, wherein each group of folding units comprises: the connecting head is fixedly connected to the upper end of the rear foot rod and is provided with a first connecting end positioned at the rear side of the rear foot rod; the connecting rod and the sleeve are rotationally connected with one end of the connecting rod and the first connecting end of the connector, and the other end of the connecting rod is rotationally connected with the sleeve; the first end of the lower handle tube is rotationally connected with the rear foot rod, and the sleeve is sleeved on the lower handle tube in a sliding manner so as to move close to or far from the rear foot rod along the extending direction of the lower handle tube; the central axes of the rear foot rod, the connecting rod and the lower handle pipe of one group of folding units are positioned on a first plane, and the central axes of the rear foot rod, the connecting rod and the lower handle pipe of the other group of folding units are positioned on a second plane parallel to the first plane; the left-right direction is perpendicular to the first plane and the second plane. The baby carriage occupies small volume after being folded, and is convenient to carry and transport.

Description

Baby carriage

Technical Field

The application relates to the technical field of strollers, in particular to a foldable stroller.

Background

The baby carriage is a tool carriage which is designed for providing convenience for outdoor activities of babies, and greatly reduces the burden of carrying the babies when people go out. For convenient carrying and transportation, the existing strollers are generally foldable to reduce space occupation. However, the existing baby carriage still occupies a large volume after being folded, which is not beneficial to carrying and transporting.

Disclosure of Invention

Based on this, in order to solve the problem that the existing stroller occupies a large volume after being folded, it is necessary to provide a stroller with a small volume after being folded.

According to an aspect of the present application, there is provided a stroller including two sets of folding units arranged at intervals in a left-right direction, each set of the folding units including:

the connecting head is fixedly connected to the upper end of the rear foot rod, and the connecting head is provided with a first connecting end positioned at the rear side of the rear foot rod;

the connecting rod is rotatably connected with the first connecting end of the connector, and the other end of the connecting rod is rotatably connected with the sleeve;

the first end of the lower handle tube is rotationally connected with the rear foot rod, and the sleeve is sleeved on the lower handle tube in a sliding manner so as to move close to or far from the rear foot rod along the extending direction of the lower handle tube;

the central axes of the rear foot rod, the connecting rod and the lower handle pipe of one group of folding units are positioned on a first plane, and the central axes of the rear foot rod, the connecting rod and the lower handle pipe of the other group of folding units are positioned on a second plane parallel to the first plane;

the left-right direction is perpendicular to the first plane and the second plane.

In one embodiment, the folding unit further comprises a front foot bar, and the connector further comprises a second connecting end positioned at the front side of the rear foot bar and opposite to the first connecting end;

the upper end of the front foot rod is rotationally connected with the second connecting end of the connector;

the central axes of the front foot bars of one group of folding units are positioned on the first plane, and the central axes of the front foot bars of the other group of folding units are positioned on the second plane.

In one embodiment, the stroller further comprises a foot bar connector; one end of the foot rod connecting piece is rotationally connected with the front foot rod, and the other end of the foot rod connecting piece is rotationally connected with the lower handle pipe;

the foot bar connecting piece is positioned between the two folding units.

In one embodiment, the connector comprises:

a body, the first and second connection ends configured as longitudinal ends of the body; and

the connecting part is connected to one side of the body, and the upper end of the rear foot rod is connected to one end, far away from the body, of the connecting part.

In one embodiment, the stroller further comprises a locking member for securing the sleeve in a predetermined position on the lower handle tube.

In one embodiment, the locking piece comprises a clamping part penetrating through the lower handle pipe; the sleeve is provided with a clamping hole matched with the clamping part.

In one embodiment, the locking member further comprises:

the main body part is fixedly arranged in the lower handle tube, and the clamping part is connected with the main body part in a sliding manner along a first direction;

the sliding pin penetrates through the clamping part to drive the clamping part to move along the first direction;

the movable core is connected to the main body part in a sliding way along a second direction, a sliding groove matched with the sliding pin is arranged on the movable core, and the sliding groove is used for converting the movement of the movable core along the second direction into the movement of the sliding pin along the first direction;

wherein the second direction is parallel to the extending direction of the lower handle tube, and the first direction and the second direction are perpendicular to each other.

In one embodiment, the locking element further comprises a return spring; one end of the return spring along the second direction is connected with the main body part, and the other end of the return spring is connected with the movable core.

In one embodiment, the stroller further comprises an upper handle tube and two bending joints; the upper handle pipe is rotationally connected to the second end of the lower handle pipe through the bending joint;

the bending joint is connected to the clamping portion in a linkage mode, and is used for driving the clamping portion to be separated from the clamping hole when the upper handle tube rotates relative to the lower handle tube.

In one embodiment, the stroller further includes an unlocking member disposed on the upper handle tube, and the unlocking member is configured to unlock the bending joint so that the upper handle tube can rotate relative to the lower handle tube.

The central axes of the rear foot rod, the connecting rod and the lower handle pipe in the folding unit are arranged on the same plane, so that the overall size of the baby carriage in the left-right direction is reduced. Meanwhile, the first connecting end of the connector is rotationally connected with the connecting rod, the connecting rod is staggered with the lower handle pipe in the front-back direction, interference between the connecting rod and the lower handle pipe during folding is avoided, and normal folding of the baby carriage is guaranteed. The baby carriage occupies small volume after being folded, and is convenient to carry and transport.

Drawings

FIG. 1 is a schematic view of a stroller according to an embodiment of the present application;

FIG. 2 is a side view of the stroller of FIG. 1;

FIG. 3 is a front view of the stroller of FIG. 1;

FIG. 4 is a partial cross-sectional view of a stroller in accordance with an embodiment of the present application;

FIG. 5 is a schematic view of a stroller folded according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a connector according to an embodiment of the application.

Description of the reference numerals

1. A folding unit; 11. a connector; 111. a first connection end; 112. a second connection end; 113. a connection part; 12. a rear foot bar; 13. a connecting rod; 14. a sleeve; 15. a lower handle tube; 151. a stop portion; 16. a forefoot lever; 17. a foot bar connector; 18. a first plane; 19. a second plane;

2. a locking member; 21. a clamping part; 22. a main body portion; 23. a sliding pin; 24. a movable core; 241. a chute; 25. a return spring;

3. an upper handle tube; 31. a connecting pipe; 32. a grip tube;

4. bending the joint; 5. unlocking piece.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The baby carriage is a tool carriage which is designed for providing convenience for outdoor activities of babies, and greatly reduces the burden of carrying the babies when people go out. For convenient carrying and transportation, the existing strollers are generally foldable to reduce space occupation. The existing baby carriage is usually provided with a connecting rod which is directly connected with a rear foot rod in a rotating way, and the connecting rod is arranged at the outermost side of the baby carriage, namely, the central axis of the connecting rod in a folding unit is not in the same plane with the central axes of the rear foot rod and a lower handle pipe, so that the connecting rod and the lower handle pipe are staggered in the left-right direction, and the connecting rod and the lower handle pipe are prevented from interfering when being folded. However, such an arrangement increases the overall size of the stroller in the left-right direction.

In addition, the front end of the front foot rod and the front end of the rear foot rod of the existing baby carriage are rotationally connected, the central axes of the front foot rod and the rear foot rod are located on the same plane, and after the baby carriage is folded, a certain included angle is necessarily formed between the central axes of the front foot rod and the rear foot rod, so that the whole size of the folded baby carriage in the front-rear direction is large. Therefore, the existing baby carriage still occupies a large volume after being folded, which is not beneficial to carrying and transporting.

Referring to fig. 1 to 3, a stroller according to an embodiment of the present application includes two sets of folding units 1 arranged at intervals in a left-right direction. Each group of folding units 1 comprises a connector 11, a rear foot bar 12, a connecting rod 13, a sleeve 14 and a lower handle tube 15. The connector 11 is fixedly connected to the upper end of the rear leg 12, and the connector 11 has a first connection end 111 located at the rear side of the rear leg 12. One end of the connecting rod 13 is rotatably connected to the first connecting end 111 of the connector 11, and the other end of the connecting rod 13 is rotatably connected to the sleeve 14. The first end of the lower handle tube 15 is rotatably connected with the rear foot bar 12, and the sleeve 14 is slidably sleeved on the lower handle tube 15 so as to move close to or away from the rear foot bar 12 along the extending direction of the lower handle tube 15. It should be appreciated that when the lower handle tube 15 is rotated clockwise, the sleeve 14 slides over the lower handle tube 15 adjacent to the rear foot bar 12, and the sleeve 14 rotates the link 13 clockwise, thereby retracting the link 13 relative to the rear foot bar 12.

Wherein the central axes of the rear foot bar 12, the connecting rod 13 and the lower handle tube 15 of one group of folding units 1 are located in a first plane 18, and the central axes of the rear foot bar 12, the connecting rod 13 and the lower handle tube 15 of the other group of folding units 11 are located in a second plane 19 parallel to the first plane 18. The left-right direction is perpendicular to the first plane 18 and the second plane 19.

The above-mentioned stroller is advantageous in that the overall size of the stroller in the left-right direction is reduced by arranging the center axes of the rear foot bar 12, the link 13 and the lower handle tube 15 in the folding unit 1 on the same plane. Meanwhile, the first connecting end 111 of the connector 11 is rotationally connected with the connecting rod 13, so that the connecting rod 13 and the lower handle tube 15 are staggered in the front-back direction, interference between the connecting rod 13 and the lower handle tube 15 during folding is avoided, and normal folding of the baby carriage is ensured. The baby carriage occupies small volume after being folded, and is convenient to carry and transport.

The folding unit 1 further comprises a front foot bar 16, and the connector 11 further has a second connection end 112 located at the front side of the rear foot bar 12 opposite to the first connection end 111. The upper end of the front foot bar 16 is rotatably connected to the second connecting end 112 of the connector 11. The central axes of the front foot bars 16 of one group of folding units 1 lie in a first plane 18 and the central axes of the front foot bars 16 of the other group of folding units 1 lie in a second plane 19.

Through the second connecting end 112 of the connector 11 is rotationally connected with the front foot rod 16, the front foot rod 16 and the rear foot rod 12 are staggered in the front-back direction, so that the central axis of the front foot rod 16 and the central axis of the rear foot rod 12 of the baby carriage are nearly parallel in the folded state, the whole size of the folded baby carriage in the front-back direction is reduced, the occupied volume of the baby carriage after being folded is further reduced, and the baby carriage is convenient to carry and transport.

The stroller further comprises a foot bar connecting member 17, one end of the foot bar connecting member 17 is rotatably connected with the front foot bar 16, and the other end of the foot bar connecting member 17 is rotatably connected with the lower handle tube 15. The foot bar connection 17 is located between the two folding units 1. When the lower handle tube 15 rotates clockwise, the sleeve 14 slides on the lower handle tube 15 to be close to the rear foot rod 12, and the sleeve 14 drives the connecting rod 13 to rotate clockwise, so that the connecting rod 13 is folded towards the rear foot rod 12. At the same time, the lower handle tube 15 also drives the foot bar connecting piece 17 to move from front to back, so that the front foot bar 16 is folded towards the rear foot bar 12. Thus, when the stroller is folded, the folding of the link 13 and the front leg link 16 with respect to the rear leg link 12 can be simultaneously achieved by rotating the lower handle tube 15 clockwise. Conversely, when the stroller is to be opened, the deployment of the link 13 and the front leg link 16 relative to the rear leg link 12 can be simultaneously achieved by rotating the lower handle tube 15 counterclockwise.

The stroller further includes two front wheels provided at the lower ends of the front leg bars 16 and two rear wheels provided at the lower ends of the rear leg bars 12, and the spacing between the two front wheels in the left-right direction is smaller than the spacing between the two rear wheels in the left-right direction. Therefore, the interference between the front wheel and the rear wheel during folding is avoided, and the normal folding of the baby carriage is ensured.

Referring to fig. 4, the connector 11 includes a body and a connecting portion 113, and the first connecting end 111 and the second connecting end 112 are configured as two longitudinal ends of the body. The connecting portion 113 is connected to one side of the body, and the upper end of the rear foot bar 12 is connected to an end of the connecting portion 113 away from the body.

The stroller further comprises a locking member 2, the locking member 2 being adapted to secure the sleeve 14 in a predetermined position on the lower handle tube 15. It will be appreciated that as the position of the sleeve 14 on the lower handle tube 15 changes, the positional relationship of the connecting rod 13 to the lower handle tube 15 relative to the rear foot bar 12 will also change accordingly. Wherein when the sleeve 14 is in the preset position, the stroller assumes an unfolded state suitable for use, and the locking member 2 is capable of maintaining the stroller in the unfolded state, thereby preventing the folding unit 1 from being suddenly folded to cause injury to the infant when the stroller is in use. In the embodiment shown in fig. 2, the central axis of the front foot bar 16 and the central axis of the connecting rod 13 are parallel to the longitudinal direction of the connector 11 body in the unfolded state of the stroller.

In some embodiments, referring to fig. 2, the lower handle tube 15 includes a sliding portion and a stop portion 151 connected to the sliding portion, the sleeve 14 is slidably sleeved on the sliding portion, and when the sleeve 14 is located at a preset position, the sleeve 14 abuts against the stop portion 151, so that the preset position is the most extreme position of the movement of the sleeve 14 on the lower handle tube 15, so as to facilitate the stroller to be quickly and accurately opened to the unfolded state.

Referring to fig. 4, the locking member 2 includes a locking portion 21 penetrating the lower handle tube 15. The sleeve 14 is provided with a clamping hole matched with the clamping part 21. When the sleeve 14 is located at the preset position, the clamping portion 21 can be clamped in the clamping hole, so that the relative position of the sleeve 14 and the lower handle tube 15 is fixed, and the stroller is kept in the unfolded state.

The locking member 2 further comprises a body portion 22, a sliding pin 23 and a movable core 24. The main body 22 is fixedly arranged inside the lower handle tube 15, and the clamping part 21 is connected to the main body 22 in a sliding manner along a first direction. The sliding pin 23 penetrates through the clamping portion 21 to drive the clamping portion 21 to move along the first direction. The movable core 24 is slidably connected to the main body 22 along the second direction, a sliding groove 241 adapted to the sliding pin 23 is provided on the movable core 24, and the sliding groove 241 is used for converting the movement of the movable core 24 along the second direction into the movement of the sliding pin 23 along the first direction, so as to drive the clamping portion 21 to disengage from the clamping hole, and unlock the stroller, and at this time, the stroller can be folded from the unfolded state to the folded state. Wherein the second direction is parallel to the extending direction of the lower handle tube 15, and the first direction and the second direction are perpendicular to each other.

Specifically, the slide groove 241 has an inclined portion having an extending direction at an angle of less than 90 ° to the second direction and a straight portion having an extending direction parallel to the second direction. When the movable core 24 just starts to move in the second direction with respect to the main body portion 22, the slide pin 23 slides along the inclined portion of the slide groove 241, and at this time, the slide pin 23 moves obliquely with respect to the movable core 24, the component of the oblique movement in the first direction being the amount of movement of the slide pin 23 with respect to the main body portion 22 in the first direction, and the component of the oblique movement in the second direction being the amount of movement of the movable core 24 with respect to the main body portion 22 in the second direction, thereby effecting conversion of the movement of the movable core 24 in the second direction into the movement of the slide pin 23 in the first direction. When the engaging portion 21 is disengaged from the engaging hole, the movable core 24 continues to move relative to the main body portion 22 in the second direction, and the sliding pin 23 slides along the straight portion of the sliding groove 241, and at this time, the sliding pin 23 is fixed relative to the main body portion 22.

The locking member 2 further includes a return spring 25, one end of the return spring 25 in the second direction being connected to the main body portion 22, and the other end being connected to the movable core 24. When the movable core 24 moves in the second direction relative to the main body portion 22, the return spring 25 is compressed. When the baby carriage is opened from the folded state to the unfolded state, the movable core 24 is reset under the action of the elastic force of the reset spring 25, so that the clamping part 21 is driven to be inserted into the clamping hole, the sleeve 14 is automatically locked at the preset position, manual locking is not needed, and the operation is convenient.

The stroller further comprises an upper handle tube 3 and two bending joints 4. The upper handle tube 3 is rotatably connected to the second end of the lower handle tube 15 by means of a bending joint 4. The bending joint 4 is connected to the clamping portion 21 in a linkage manner, and the bending joint 4 is used for driving the clamping portion 21 to be separated from the clamping hole when the upper handle tube 3 rotates relative to the lower handle tube 15. The user can release the position lock of the sleeve 14 by the locking member 2 by rotating the upper handle tube 3, thereby facilitating the folding of the stroller. In some embodiments, the bending joint 4 is connected to the movable core 24 through a pull wire, and when the upper handle tube 3 rotates relative to the lower handle tube 15, the bending joint 4 pulls the pull wire to move the movable core 24 along the second direction, so as to drive the clamping portion 21 to move along the first direction to be separated from the clamping hole.

The upper handle tube 3 comprises two connecting tubes 31 and holding tubes 32 which are arranged at intervals along the left-right direction, one ends of the two connecting tubes 31 are rotationally connected with the lower handle tube 15 through bending joints 4, and the other ends of the two connecting tubes 31 are respectively connected with the left end and the right end of the holding tubes 32. When the stroller is in the unfolded state, the user holds the grip tube 32 to move the stroller. When the stroller needs to be folded, the upper handle tube 3 can be rotated relative to the lower handle tube 15 by pressing the holding tube 32 downwards, so that the stroller is convenient to operate.

The stroller further comprises an unlocking member 5, and the unlocking member 5 is arranged on the upper handle tube 3. The unlocking piece 5 is connected to the bending joint 4 in a linkage manner, and the unlocking piece 5 is used for unlocking the bending joint 4 so that the upper handle tube 3 can rotate relative to the lower handle tube 15.

The complete folding step of the pushchair illustrated is as follows, the unlocking member 5 is first operated to unlock the bending joint 4, so that the upper handle tube 3 can rotate relative to the lower handle tube 15. Then the lower handle tube 15 is rotated anticlockwise, in the process, the bending joint 4 moves the movable core 24 along the second direction through the stay wire, the clamping part 21 is driven to slide relative to the main body part 22 along the first direction under the action of the sliding groove 241, the clamping part 21 is separated from the clamping hole, and the position locking of the sleeve 14 by the locking piece 2 is released. Finally, the lower handle tube 15 is rotated clockwise, so that the connecting rod 13 and the front foot rod 16 are synchronously folded towards the rear foot rod 12, and the baby carriage in the folded state is small in occupied volume after being folded, and convenient to carry and transport as shown in fig. 4.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the patent. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the protection scope of this patent shall be subject to the appended claims.

Claims

1. The baby carriage is characterized by comprising two groups of folding units which are arranged at intervals along the left-right direction, wherein each group of folding units comprises:

the front foot rod is provided with a connector, and the connector is also provided with a second connecting end which is positioned at the front side of the rear foot rod and is opposite to the first connecting end; the upper end of the front foot rod is rotationally connected with the second connecting end of the connector; and

the foot rod connecting piece, one end of the foot rod connecting piece is rotationally connected with the front foot rod, and the other end of the foot rod connecting piece is rotationally connected with the lower handle tube; the foot bar connecting piece is positioned between the two folding units;

the central axes of the rear foot rod, the connecting rod, the lower handle pipe and the front foot rod of one group of folding units are positioned on a first plane, and the central axes of the rear foot rod, the connecting rod, the lower handle pipe and the front foot rod of the other group of folding units are positioned on a second plane parallel to the first plane;

2. The stroller of claim 1, further comprising two front wheels and two rear wheels, wherein the two front wheels are respectively disposed at lower ends of the two front leg bars, and the two rear wheels are respectively disposed at lower ends of the two rear leg bars;

the distance between the two front wheels in the left-right direction is smaller than the distance between the two rear wheels in the left-right direction.

3. The stroller of claim 1, wherein the lower handle tube comprises:

the sleeve is sleeved on the sliding part in a sliding way; and

a stop portion connected to the sliding portion; the sleeve can slide to a preset position along the sliding part so that the sleeve is abutted against the stop part.

4. The stroller of claim 1, wherein the connector comprises:

5. The stroller of any one of claims 1-4, further comprising a locking member for securing the sleeve in a predetermined position on the lower handle tube.

6. The stroller of claim 5, wherein the locking member comprises a clip portion passing through the lower handle tube; the sleeve is provided with a clamping hole matched with the clamping part.

7. The stroller of claim 6, wherein the locking member further comprises:

8. The stroller of claim 7, wherein the locking member further comprises a return spring; one end of the return spring along the second direction is connected with the main body part, and the other end of the return spring is connected with the movable core.

9. The stroller of any one of claims 6 to 8, further comprising an upper handle tube and two bending joints; the upper handle pipe is rotationally connected to the second end of the lower handle pipe through the bending joint;

10. The stroller of claim 9, further comprising an unlocking member disposed on the upper handle tube, the unlocking member configured to unlock the articulation joint to enable the upper handle tube to rotate relative to the lower handle tube.