CN209336784U - Perambulator - Google Patents

Abstract

The utility model discloses a baby carriage, the frame of which at least comprises a support rod and a mounting frame which can be turned around a rotating shaft and is connected to the support rod in a front-to-back manner, wherein the axis line of the rotating shaft extends along the left and right directions, and the front wheel assembly And/or the rear wheel assembly includes a wheel joint with a steering shaft and a wheel body disposed under the wheel joint, the steering shaft is rotatably connected to the mounting frame around its own axis, and the vehicle frame is also Including a driving rod for driving the mounting frame to turn back and forth around the rotating shaft during the transition of the frame between the unfolded state and the folded state, when the rods on the frame rotate relatively to open the frame or fold the car When racking, the front wheel assembly and/or the rear wheel assembly is opened or retracted relative to the bracket rod by driving the mounting frame to rotate through the driving rod, so that the folded frame does not appear taller due to the height of the front wheel assembly/rear wheel assembly The size of the frame makes the folded structure more compact and the size is further reduced.

Description

baby carriage

technical field

The utility model relates to a baby carriage.

Background technique

At present, there are various structures of strollers such as baby strollers on the market. There are many kinds of structures, and the folding principles are also different. The size of the folded is also very different. How to reduce the size of the stroller after folding as much as possible? It has always been the continuous pursuit of R&D personnel in this field. At present, after most of the strollers are folded, only the frame part is folded, and the wheel assembly is erected at the bottom of the frame in a 7-shape, resulting in the size of the stroller after being folded is still large.

SUMMARY OF THE INVENTION

The purpose of the utility model is to overcome the shortcomings of the prior art, and to provide a stroller whose front wheel assembly can be turned over and folded when the frame is folded, so as to further reduce the size of the stroller after being folded.

In order to achieve the above purpose, the technical solution adopted by the present invention is: a baby carriage, comprising a frame having an unfolded state and a folded state, a front wheel assembly arranged on the bottom front of the frame, and a front wheel assembly arranged on the frame The rear wheel assembly at the bottom and rear, the frame at least includes a support rod, a mounting frame connected to the support rod so as to be able to flip back and forth around a rotating shaft, wherein the axis line of the rotating shaft extends in the left-right direction, and the front The wheel assembly and/or the rear wheel assembly includes a wheel joint with a steering shaft and a wheel body arranged under the wheel joint, and the steering shaft is rotatably connected to the mounting frame around its own axis, so The frame further includes a drive rod for driving the mounting frame to turn back and forth around the rotating shaft during the transition of the frame between the unfolded state and the folded state. When the frame is in the unfolded state, the The front wheel assembly and/or the rear wheel assembly is supported under the frame, and the steering shaft extends in the up-down direction; when the frame is in a folded state, the wheel joint and the bracket rod are close to each other .

Preferably, the vehicle frame includes two side brackets disposed on the left and right sides respectively, a vertically extending central plane is formed between the two side brackets, and the axis line of the rotating shaft is perpendicular to the central plane.

Preferably, the support rod is a bottom frame extending in the front-rear direction, and the mounting frame is connected to the front and/or rear of the bottom frame through the rotating shaft. When the vehicle frame is in a folded state, all the The wheel joints are gathered at the bottom of the chassis.

Further, the mounting frame is connected to the front part of the bottom frame, the front wheel assembly is mounted on the mounting frame, and the vehicle frame at least includes a front strut extending upward from the front to the rear. The lower part of the support rod is pivotally connected to the front part of the base frame, and one end of the drive rod is pivotally connected to the mounting frame through a first shaft, the first shaft and the axis line of the rotating shaft parallel to each other; the other end of the driving rod is arranged on the front support rod so as to be able to rotate relative to each other and to slide along the length direction of the front support rod.

Further, the lower part of the front support rod is pivotally connected to the front part of the chassis through a second shaft, and the second shaft and the axis line of the rotating shaft are parallel to each other.

Further, the bottom frame includes a front bottom rod and a rear bottom rod that are slidably connected in the front and rear directions, and the vehicle frame also includes a push rod, a rear support rod and a connecting rod extending in the up and down direction. The upper part of the front support rod It is rotatably connected to the push rod through a third shaft, the lower part of the push rod is rotatably connected to the upper part of the rear support rod through a fourth shaft, and the lower part of the rear support rod is rotatably connected to the push rod through a fifth shaft On the rear bottom rod, the front part of the connecting rod is rotatably connected to the front part of the front bottom rod through the sixth axis and the rear part is rotatably connected to the rear support rod through the seventh axis, so The axis lines of the sixth shaft and the rotating shaft are parallel or collinear with each other.

Further, a linkage rod is also provided between the push rod and the front support rod, one end of the linkage rod is rotatably connected to the push rod through the eighth axis, and the other end of the linkage rod is rotatably connected to the push rod. The part can be relatively rotatable and slidable along the length direction of the front support rod and is provided on the front support rod, and the linkage rod and the drive rod move synchronously along the length direction of the front support rod. set up.

Further, the bottom frame includes two bottom support rods that are arranged on the left and right sides and both extend in the front-rear direction, and each of the bottom support rods includes the front bottom rod and the rear bottom rod. between the front ends of the front bottom rods on both sides; correspondingly, the front support rod, the push rod, the rear support rod, the connecting rod and the driving rod are divided into two groups on the left and right sides.

Further, the bottom frame includes at least two bottom support rods that are arranged on the left and right sides and both extend in the front-rear direction, the mounting frame is rotatably connected to the front part of the bottom support rod around the rotating shaft, The wheel assemblies are mounted on the mounting frame; at least one group of the rear wheel assemblies is provided at the rear of each bottom strut, when the frame is in a folded state, the wheel body of the front wheel assembly It is located between the two bottom struts in the left-right direction, and is located in front of the rear wheel assembly.

As a preferred embodiment, the mounting frame is a footboard.

Due to the application of the above-mentioned technical solutions, the utility model has the following advantages compared with the prior art: the stroller of the present utility model is provided by installing the front wheel assembly and/or the rear wheel assembly on the mounting frame, and connecting the mounting frame rotatably. At the bottom of a bracket rod on the frame, when the rods on the frame rotate relatively to open the frame or fold the frame, the front wheel assembly and/or the rear wheel assembly are relatively supported by the driving rod to drive the mounting frame to rotate The rods are opened or folded so that the folded frame does not have a higher size due to the height of the front wheel assembly and/or the rear wheel assembly, so that the folded frame is more compact and the size is further reduced.

Description of drawings

Accompanying drawing 1 is the perspective view of the baby carriage of the present embodiment in the unfolded state;

Accompanying drawing 2 is the perspective view of the baby carriage of accompanying drawing 1 under the half-folded state;

Accompanying drawing 3 is the side view of the stroller of accompanying drawing 2;

Accompanying drawing 4 is another perspective view of the stroller of accompanying drawing 1 under the half-folded state;

Accompanying drawing 5 is the perspective view one under the folding state of the stroller of accompanying drawing 1;

Accompanying drawing 6 is the perspective view two under the folding state of the stroller of accompanying drawing 1;

Among them: 1. Bottom frame; 100. Bottom support rod; 101. Front bottom rod; 102. Rear bottom rod; 2. Mounting frame (footboard); 3. Front support rod; ;4, drive rod; 5, rear support rod; 6, connecting rod; 7, push rod; 71, lower push rod; 72, upper push rod; 8, linkage rod; 9, pin shaft;

10. Revolving axis; 11. First axis; 12. Second axis; 13. Third axis; 14. Fourth axis; 15. Fifth axis; 16, sixth axis; 17, seventh axis; Axle; 19, sliding pin; 20, front wheel assembly; 201, wheel joint; 202, wheel body; 30, rear wheel assembly.

Detailed ways

The technical solutions of the present utility model will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

Referring to the stroller shown in FIG. 1 to FIG. 6 , here is a child stroller, which includes a frame with an unfolded state and a folded state, a front wheel assembly 20 provided on the bottom front of the frame, and a front wheel assembly 20 provided on the frame. Bottom rear rear wheel assembly 30.

The vehicle frame at least includes a bottom frame 1 extending in the front-rear direction, and a mounting frame 2 connected to the front of the bottom frame so as to be able to turn around a rotating shaft 10 . The axis line of the rotating shaft 10 extends along the left-right direction. The frame has two side brackets which are respectively arranged on the left and right sides. There is a vertically extending center plane between the two side brackets. The axis line of the rotating shaft 10 is perpendicular to the center plane. The above-mentioned central plane is symmetrically arranged, that is, the above-mentioned central plane is the central symmetrical plane of the left and right side brackets.

The rear wheel assembly 30 is mounted on the rear of the chassis 1; the front wheel assembly 20 is mounted on the mounting frame 2, specifically, the front wheel assembly 20 includes a wheel joint 201 with a steering shaft (not shown in the figure) and a wheel joint 201 provided on the wheel The wheel body 202 below the joint 201, the upper part of the wheel joint 201 is installed at the bottom of the mounting frame 2, that is, the steering shaft is rotatably connected to the mounting frame 2 around its own axis, so that the front wheel assembly 20 can be rotated universally. Implement steering.

The frame also includes a drive rod 4 for driving the mounting frame 2 to flip back and forth around the rotating shaft 10 during the transition of the frame between the unfolded state and the folded state. When folded, the drive rod 4 will drive the mounting frame 2 to turn over to make it rotate and close to the bottom of the base frame 1, so that the wheel joint 201 is closed at the bottom of the base frame 1, which effectively reduces the height dimension of the folded frame; When the rods on the frame are relatively rotated to unfold the frame, the driving rod 4 drives the mounting frame 2 to turn over so that the front wheel assembly 20 is opened relative to the bottom frame 1 .

Referring to FIGS. 1 to 6 , the vehicle frame at least includes a front strut 3 extending upward from front to rear, the lower part of the front strut 3 is pivotally connected to the front of the chassis 1 , and one end of the drive rod 4 passes through The first shaft 11 is pivotally connected to the mounting frame 2, and the axes of the first shaft 11 and the axis of the rotating shaft 10 are parallel to each other and do not overlap; The longitudinal direction is relatively slidable on the front strut 3 .

In this embodiment, the lower part of the front support rod 3 is pivotally connected to the front part of the chassis 1 through the second shaft 12 , and the axis lines of the second shaft 12 and the axis of the rotating shaft 10 are parallel to each other and do not coincide with each other; The lower end is connected to the mounting frame 2 through the first shaft 11, the upper end of the driving rod 4 is rotatably provided with a sliding pin 9, the lower part of the front support rod 3 is provided with a sliding groove 31, and the sliding pin 9 is slidably arranged in the sliding groove 31. When the frame is folded, the front support rod 3 rotates and folds relative to the base frame 1, which drives the driving rod 4 to rotate and then drives the mounting frame 2 to turn over, so that the front wheel assembly 20 is gradually folded at the bottom of the base frame 1, as shown in Figure 4, Figure 5, shown in Figure 6. Similarly, when the vehicle frame is unfolded, the front support rod 3 is rotated and opened relative to the bottom frame 1, which drives the driving rod 4 to rotate, so that the mounting frame 2 is turned over, and thus the front wheel assembly 20 is unfolded.

Specifically, referring to the drawings, in the vehicle frame of the present embodiment, the bottom frame 1 includes two bottom struts 100 respectively arranged on the left and right sides, and the mounting frame 2 is provided between the front parts of the bottom struts 100 on both sides. At least one set of rear wheel assemblies 30 is provided at the rear of each bottom strut 100.

Referring to FIGS. 1 to 6 , each bottom support rod 100 includes a front bottom rod 101 and a rear bottom rod 102 that are slidably connected in the front-rear direction. Here, the rear of the front bottom rod 101 is slidably passed through the rear bottom rod 102 in the front rod cavity. In addition to the front strut 3 and the drive rod 4, the left and right sides of the frame also have a push rod 7, a rear strut 5 and a connecting rod 6 extending in the up-down direction. The upper part of the front strut 3 passes through the third shaft 13. It is rotatably connected to the push rod 7, and the lower part of the push rod 7 is rotatably connected to the upper part of the rear support rod 5 through a fourth shaft 14, and the fourth shaft 14 is located below the third shaft 13 on the push rod 7; the rear support rod The lower part of the connecting rod 6 is rotatably connected to the rear bottom rod 102 through the fifth shaft 15 , the front part of the connecting rod 6 is rotatably connected to the front part of the front bottom rod 101 through the sixth shaft 16 and its rear part is rotated through the seventh shaft 17 Connected to the rear support rod 5, the sixth shaft 16 can be parallel to the axis line of the rotating shaft 10 or arranged coaxially in this embodiment, and the seventh shaft 17 is located on the rear support rod 5 between the fourth shaft 14 and the shaft. Between the fifth axis 15.

The push rod 7 is a telescopic structure along the length direction, and includes a lower push rod 71 and an upper push rod 72 that are connected slidably and telescopically. There is also a linkage rod 8 between the lower push rod 71 and the front support rod 3 , the upper end of the linkage rod 8 is rotatably connected to the lower push rod 71 through the eighth shaft 18 , and the lower end of the linkage rod 8 can be relatively rotatable and It is provided on the front support rod 3 so as to be slidable along the longitudinal direction of the front support rod 3 . Here, the lower end of the linkage rod 8 is rotatably provided with a sliding pin 19 , the upper part of the front support rod 3 is provided with an upper sliding groove 32 extending along its own length direction, and the sliding pin 19 is slidably inserted in the upper sliding groove 32 . In this embodiment, the sliding pin 19 and the sliding pin 9 are fixed to each other and synchronously slide along the longitudinal extension direction of the front support rod 3 , so that the linkage rod 8 and the driving rod 4 can move synchronously along the longitudinal extension direction of the front support rod 3 . .

When the frame is in the unfolded state, as shown in FIG. 1 , the front bottom rod 101 and the rear bottom rod 102 of the bottom frame 1 are extended along the length direction, the front wheel assembly 20 is supported at the front of the bottom frame 1 , and the rear wheel assembly 30 is supported At the rear of the chassis 1 , the front support rod 3 and the push rod 7 on the same side extend along the same length direction, and between the bottom support rod 100 , the rear support rod 5 and the connecting rod 6 , the bottom support rod 100 and the rear support rod 5 A stable triangular structure is formed between the front support rod 3 and the frame, and the frame has good stability and bearing capacity; from the side of the frame, the drive rod 4 and the linkage rod 8 are basically blocked by the front support rod 3 and the push rod 7. , the appearance is very simple.

When the frame is folded, as shown in FIGS. 2 to 4 , the push rod 7 is retracted in the length direction and then flipped forward, and the front support rod 3 , the rear support rod 5 and the connecting rod 6 are all rotated towards the base frame 1 When retracted, the front bottom rod 101 and the rear bottom rod 102 of the chassis 1 are retracted in the front-rear direction, and at the same time, under the rotation of the front support rod 3, the drive rod 4 drives the mounting frame 2 to gradually rotate and retract relative to the chassis 1. Finally, the push rod 7 , the front support rod 3 , the rear support rod 5 and the connecting rod 6 are all folded above the base frame 1 , and the front wheel assembly 20 is rotated and folded to the bottom of the base frame 1 , wherein the wheel joint 201 is connected to the base frame 1 . Close to each other, the wheel body 202 is located between the bottom struts 100 on both sides, and is located in front of the rear wheel assembly 30 . The folded frame is shown in Figures 5 and 6, and its structure is very flat, and since the wheel joint 201 is completely turned over to extend in the front-rear direction, the height dimension of the folded front of the frame is greatly reduced. The operation process of folding and opening the frame is also very simple, and the operation steps are not added because of the need to increase the folding of the front wheel assembly, and the use is very convenient.

In other embodiments, the mounting frame 2 can also be rotatably connected to other support rods of the frame through the rotating shaft 10, and the front wheel assembly 20 can be mounted on the mounting frame 2. During the unfolding and folding process of the frame, the drive The rod drives the mounting frame 2 to flip back and forth around the rotating shaft 10, so that the front wheel assembly 20 is opened or folded relative to the bracket rod, so that the folded frame will not present a higher size due to the height of the front wheel assembly 20, so that after the frame is folded The structure is more compact and the size is further reduced.

In some other embodiments, the rear wheel assembly 30 can also be arranged in the above manner, so that the rear wheel assembly 30 can also be reduced in height when the frame is folded, which further reduces the size of the frame after being folded.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the technology to understand the content of the present invention and implement accordingly, and cannot limit the protection scope of the present invention with this. All equivalent changes or modifications made according to the spirit of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. a kind of perambulator, including the vehicle frame with unfolded state and folded state, the front component set on vehicle frame bottom front, And the wheel assembly set on vehicle frame bottom rear portion, it is characterised in that: the vehicle frame include at least cradling piece, can be around the shaft Front and back is turningly connected to the mounting rack on the cradling piece, wherein the axial line of the shaft extends in left-right direction, it is described Front component and/or the wheel assembly include the wheel connector with steering shaft and the wheel body below the wheel connector, institute Stating steering shaft can be pivotally connected on the mounting rack around self-axis line, and the vehicle frame further includes existing for the vehicle frame The drive rod for driving the mounting rack to overturn during converting between unfolded state and folded state before and after the shaft, when When the vehicle frame is in unfolded state, the front component and/or wheel assembly support are stood below the vehicle frame, and described turn It is vertically extended to axis；When the vehicle frame is in folded state, the wheel connector is mutually drawn close with the cradling piece.

2. perambulator according to claim 1, it is characterised in that: the vehicle frame includes that two at left and right sides of being divided into are collateral Frame has the median plane erect and extended between two side stands, and the axial line of the shaft is perpendicular to the median plane.

3. perambulator according to claim 1, it is characterised in that: the cradling piece is the chassis extended along the longitudinal direction, institute The front and/or rear that mounting rack is connected to the chassis by the shaft is stated, when the vehicle frame is in folded state, institute Wheel connector is stated to collapse in the bottom of the chassis.

4. perambulator according to claim 3, it is characterised in that: the mounting rack is connected to the front of the chassis, described Front component is installed on the mounting rack, and the vehicle frame includes at least the front support rod extended from front to back to updip, before described The lower pivot of strut is connected to the front of the chassis, and the one end of the drive rod is pivotally connected in described by first axle On mounting rack, the axial line of the first axle and the shaft is parallel to each other；It the other end of the drive rod can either be opposite Rotation can be slidably set on the front support rod again along the length direction of the front support rod.

5. perambulator according to claim 4, it is characterised in that: the lower part of the front support rod is pivotally connected in by the second axis The front of the chassis, second axis and the axial line of the shaft are parallel to each other.

6. perambulator according to claim 4, it is characterised in that: the chassis includes the preceding bottom being slidably connected along the longitudinal direction Bar and rear bottom bar, the vehicle frame further include the push rod, back stay and connecting rod vertically extended, the top of the front support rod It is rotationally connected on the push rod by third axis, the top of the lower part of the push rod and the back stay is turned by the 4th axis The lower part of dynamic connection, the back stay is rotationally connected in the rear bottom bar by the 5th axis, and the front of the connecting rod is logical Cross that the 6th axis is rotationally connected to the front of the preceding bottom bar and the rear part is rotationally connected to the back stay by the 7th axis On, the axial line of the 6th axis and the shaft is parallel to each other or collinearly.

7. perambulator according to claim 6, it is characterised in that: be additionally provided with linkage between the push rod and the front support rod The one end of bar, the interlocking bar is rotationally connected on the push rod by the 8th axis, and the other end of the interlocking bar was both Be relatively rotatable to each other and can be slidably set on the front support rod along the length direction of the front support rod, and the interlocking bar with The drive rod is arranged with moving synchronously along the length extending direction of the front support rod.

8. perambulator according to claim 6, it is characterised in that: the chassis includes being divided into the left and right sides and along front and back The two foundation struts that direction extends, the every bottom supporting rod include that the preceding bottom bar and rear bottom bar, the mounting rack are set to Between the front end of the preceding bottom bar of two sides；Correspondingly, the front support rod, push rod, back stay, connecting rod and drive rod are equal With two groups at left and right sides of being divided into.

9. perambulator according to claim 3, it is characterised in that: the chassis, which includes at least, is divided into the left and right sides and equal edge The two foundation struts that front-rear direction extends, the mounting rack are rotationally connected to the front of the bottom supporting rod, institute around the shaft Front component is stated to be installed on the mounting rack；The rear portion of the every bottom supporting rod is equipped at least one set of wheel assembly, When the vehicle frame is in folded state, the wheel body of the front component is located in left-right direction between two bottom supporting rods, And it is located at the front of the wheel assembly.

10. perambulator according to any one of claims 1 to 9, it is characterised in that: the mounting rack is foot pedal.