CN209600586U - baby stroller frame - Google Patents

Abstract

The utility model discloses a baby stroller frame, which comprises a front foot tube, a rear foot tube and a seat rod, wherein the upper end part of the rear foot tube is rotatably connected with the front foot tube, the middle section of the seat rod is rotatably connected with the rear foot tube, the baby stroller frame also comprises a connecting sheet, the front end of the connecting sheet is rotatably connected with the front foot tube, and the rear end of the connecting sheet is rotatably connected with the end part of the seat rod; when the baby stroller frame is unfolded, the connecting sheet and the seat rod are basically in the same straight line, and the connecting sheet, the seat rod, the front foot tube and the rear foot tube form a triangular frame structure; when the baby stroller frame is folded, the connecting sheet and the end part of the seat rod rotate relatively, and the connecting sheet, the seat rod, the front foot tube and the rear foot tube form a quadrilateral frame structure. The utility model discloses a connecting rod structure that connection piece, seat pole, preceding foot pipe and back foot pipe are constituteed has increased the structural stability when expanding promptly, when easily receiving the car again, supplementary folding.

Description

baby stroller frame

technical field

The utility model relates to the technical field of baby strollers, in particular to a baby stroller frame.

Background technique

The existing baby stroller frame is not stable enough when unfolded and is easy to shake;

Therefore, it is necessary to design a stable structure and a baby stroller frame that is easy to receive.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a baby stroller frame with stable structure and easy to receive the car.

The technical scheme of the utility model provides a baby stroller frame, which includes a front leg tube, a rear leg tube and a seat bar, the upper end of the rear leg tube is rotatably connected to the front leg tube, and the middle section of the seat bar is connected to the rear leg tube. The tube is rotatably connected,

The baby stroller frame also includes a connecting piece, the front end of the connecting piece is rotatably connected to the front leg tube, and the rear end of the connecting piece is rotatably connected to the end of the seat bar;

When the baby stroller frame is unfolded, the connecting piece and the seat bar are basically in the same straight line, and the connecting piece, the seat bar, the front leg tube and the rear leg tube form a triangular frame structure;

When the baby stroller frame is closed, the connecting piece and the end of the seat bar rotate relatively, and the connecting piece, the seat bar, the front leg tube and the rear leg tube form a quadrilateral frame structure .

Further, the baby stroller frame further includes a handle pipe, the lower end of the handle pipe and the upper end of the front leg pipe are locked or unlocked for rotation through a rotating joint.

Further, the baby stroller frame further includes a linkage member arranged on the seat post and operable to unlock the rotation joint.

Further, the seat pole includes two first poles parallel to each other and a second pole connecting the two first poles.

Further, the end of the first support rod is rotatably connected to the rear end of the connecting piece, the first support rod is rotatably connected to the rear leg tube, and the linkage includes two, respectively sleeved It is on the first support rod and is located at the rear side of the joint between the first support rod and the rear leg tube.

Further, a pulling member is connected to the linkage, pulling the pull to drive the linkage can unlock the rotary joint.

Further, the linkage is rotatably sleeved on the first pole;

When the baby stroller frame is retracted, pull the pulling part, the pulling part drives the linkage to rotate, the linkage drives the rotating joint to unlock, and the pulling part is lifted up to drive the seat rod Rotate relative to the connecting piece.

Further, the linkage includes a sleeve sleeved on the seat post, and a guide groove is opened on the sleeve;

The guide groove is an inclined arc groove, the seat rod is provided with a linear limit groove along the axial direction, the rotating joint and the linkage are connected by a steel wire, and the steel wire passes through the seat rod The linear limit groove and the guide groove are fixed on the linkage.

Further, a torsion spring is provided at the link, and the torsion spring is installed between the link and the seat post.

Further, the baby stroller frame further includes a support tube, the upper end of the support tube is rotatably connected to the handle tube, and the lower end of the support tube is rotatably connected to the rear leg tube.

After adopting the above technical scheme, it has the following beneficial effects:

In the utility model, the front leg tube and the seat rod are connected through the connecting piece. When the baby stroller frame is unfolded, the connecting piece, the seat rod, the front leg tube and the rear leg tube form a triangular frame structure, which has a stable supporting effect and is not easy to shake; When the frame is retracted, the connecting piece, seat post, front leg tube and rear leg tube form a quadrilateral frame structure, which is easy to realize the operation of folding and retracting the car.

Description of drawings

Referring to the accompanying drawings, the disclosure of the utility model will become easier to understand. It should be understood that these drawings are only for the purpose of illustration, and are not intended to limit the protection scope of the present utility model. In the picture:

Fig. 1 is a state diagram when the baby stroller frame is deployed in the first embodiment of the utility model;

Fig. 2 is a partially enlarged view of the baby stroller frame in Embodiment 1 of the present utility model;

Fig. 3 is a partially enlarged view of the baby stroller frame in Embodiment 1 of the utility model, omitting the linkage;

Fig. 4 is a state diagram of the baby stroller frame in the first embodiment of the present invention when it is retracted.

Reference sign comparison table:

1- Front leg tube 2- Rear leg tube 3- Seat post

4-connecting piece 5-handle pipe 6-rotating joint

7-Linkage piece 8-Rotating piece 9-Support tube

31-first support rod 32-second support rod 33-linear limit slot

71-collar 72-sleeve 73-guide groove

Detailed ways

The specific embodiment of the utility model will be further described below in conjunction with the accompanying drawings.

It is easy to understand that, according to the technical solution of the utility model, without changing the spirit of the utility model, those skilled in the art can replace various structural modes and implementation modes with each other. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction on the technical solution of the utility model.

The directional terms such as up, down, left, right, front, back, front, back, top, and bottom that are mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings, and they are It is a relative concept, so it may change accordingly according to its different positions and different usage states. Accordingly, these or other directional terms should not be construed as limiting terms.

In the present embodiment, as shown in Figure 1, the stroller frame includes a front leg tube 1, a rear leg tube 2 and a seat bar 3, the upper end of the rear leg tube 2 is rotatably connected to the front leg tube 1, and the middle section of the seat bar 3 is connected to the rear leg tube. Tube 2 is rotatably connected,

The baby stroller frame also includes a connecting piece 4, the front end of the connecting piece 4 is rotatably connected to the front leg tube 1, and the rear end of the connecting piece 4 is rotatably connected to the end of the seat bar 3;

When the baby stroller frame is unfolded, the connecting piece 4 and the seat bar 3 are basically in the same straight line, and the connecting piece 3, the seat bar 3, the front leg tube 1 and the rear leg tube 2 form a triangular frame structure;

When the stroller frame is closed, the connecting piece 4 and the end of the seat bar 3 rotate relatively, and the connecting piece 4, the seat bar 3, the front leg tube 1 and the rear leg tube 2 form a quadrilateral frame structure.

Wherein, the front leg tube 1 is connected with the front wheel, used to support the entire baby stroller frame and is located in front of the tube frame;

The rear leg pipe 2 is connected to the rear wheel, used to support the entire baby stroller frame and is located at the rear pipe frame;

Seat bar 3 is used for installing seat cover.

Specifically, as shown in FIG. 2 , the front end of the connecting piece 4 is rotatably connected to the front leg pipe 1 , and the rear end of the connecting piece 4 is rotatably connected to the end of the seat post 3 . When the baby stroller frame is unfolded, there is a certain angle between the front leg tube 1 and the rear leg tube 2, the connecting piece 4 and the end of the seat bar 3 are on the same straight line, and the connecting piece 4 and the seat bar 3 are on the same plane. At this time, a triangular frame structure is formed between the connecting piece 4 and the seat bar 3, and the front leg tube 1 and the rear leg tube 2. This structure has sufficient stability so that it can stably support the front leg tube 1 and the rear leg tube 2 when unfolded. Prevent shaking.

As shown in FIG. 4 , when the stroller is closed, the front leg tube 1 and the rear leg tube 2 are folded closer together, and the connecting piece 4 and the seat post 3 are not on the same straight line, but relatively rotated. A quadrilateral frame structure is formed between the front leg tube 1, the rear leg tube 2, the connecting piece 4 and the seat bar 3, which is easy to fold and close the baby stroller frame.

Further, as shown in Figure 1, the front leg tube 1 is a U-shaped tube;

The baby stroller frame also includes a U-shaped handle pipe 5 , the two lower ends of the handle pipe 5 and the two upper ends of the front leg pipe 1 are locked or unlocked for rotation through the rotating joint 6 .

When the baby stroller frame is unfolded, the rotating joint 6 is locked, and the handle pipe 5 is fixedly connected with the front leg pipe 1 and cannot be relatively rotated.

When the baby stroller frame is closed, the rotary joint 6 is unlocked, and the handle pipe 5 is rotated downward relative to the front leg pipe 1 .

Further, as shown in Figures 1-3, the seat post 3 is U-shaped, and the seat post 3 includes two first struts 31 parallel to each other and a second strut 32 connecting the two first struts;

The baby stroller frame also includes a linkage member 7 arranged on the seat post 3 and operable to unlock the swivel joint 6 .

The two linkages 7 are respectively sleeved on the two first poles 31, the ends of the first poles 31 are rotatably connected to the rear end of the connecting piece 4, and the first pole 31 and the rear leg tube 2 are connected by rotation. 8 is connected, and the linkage 7 is located on the rear side of the rotating member 8 on the first pole 31 .

A pulling piece is connected between the two linking pieces 7 , and the rotating joint 6 can be unlocked by pulling the pulling piece and driving the linking piece.

Specifically, the pulling part is a webbing, and the webbing extends towards the rear of the baby stroller frame, which is convenient for adults to operate. When an adult pulls the webbing, the webbing drives the link 7 to rotate, and continues to be lifted, and the link 7 drives the seat bar 3 to rotate counterclockwise in Figure 1, that is, the rear section of the seat bar 3 turns upward, and the front end of the seat bar 3 turns downward , so that the rear end of the connecting piece 4 is rotated downward, thereby facilitating the front leg tube 1 and the rear leg tube 2 to move closer to each other.

Further, the linkage 7 is rotatably sleeved on the first pole 31. When the baby stroller is retracted, the ribbon is pulled, and the ribbon drives the linkage 7 to rotate, and the linkage 7 drives the rotary joint 6 to unlock, and the pull is lifted upwards. Drive the seat bar 3 and the connecting piece 4 to rotate relatively.

When the rotating joint 6 is unlocked, the handle pipe 5 is rotated downward, and the handle pipe 5 pushes the rear leg pipe 2 to move closer to the front leg pipe 1 through the support pipe 9 .

At the same time, due to the rotation of the seat bar 3, the relative rotation between the seat bar 3 and the connecting piece 4 breaks the stable support of the triangular frame and becomes a quadrilateral frame, which is convenient to rotate and fold, making it easier for the rear leg tube 2 to move closer to the front leg tube 1 , making folding the car easier to operate.

Further, as shown in Figure 1-2, the linkage 7 is connected to the rotary joint 6 by a steel wire (not shown in the figure), and the steel wire passes through the seat post 3, the connecting piece 4 and the front leg tube 1 in sequence;

Further, as shown in Figure 2-3, the linkage 7 includes a collar 71 and a sleeve 72, and the sleeve 72 is provided with a guide groove 73;

The webbing is connected to the collar 71, and the sleeve 72 is sleeved on the seat bar 3;

The guide groove 73 is an inclined arc-shaped groove, and the seat bar 3 is provided with a linear limit groove 33 along the axial direction. The groove 33 and the guide groove 73 are fixed on the linkage 7. When the webbing is lifted upwards, the sleeve pipe 72 is driven to rotate relative to the seat bar 3, so that the steel wire is tightened and the rotating joint is unlocked.

Further, a torsion spring is provided at the link 7 , and the torsion spring can be installed between the link 7 and the seat post 3 .

When the link 7 is lifted and rotated by the webbing, the torsion spring stores potential energy, and when the user releases the webbing, the link 7 returns to the initial position under the action of the torsion spring.

Further, as shown in FIG. 1 and FIG. 4 , the baby stroller frame further includes a support tube 9 , the upper end of the support tube 9 is rotatably connected to the handle tube 5 , and the lower end of the support tube 9 is rotatably connected to the rear leg tube 2 .

When the baby stroller frame is unfolded, the support tube 9 is supported between the handle tube 5 and the rear leg tube 2 for stabilizing the handle tube 5 .

When the baby stroller frame is closed, the handle tube 5 draws closer to the support tube 9, and the support tube 9 also draws closer to the rear leg tube 2 to realize folding.

In this embodiment, the ribbon is pulled by the user, and the ribbon is a flexible ribbon, which may be a fabric ribbon, a non-woven fabric ribbon, or a plastic ribbon.

Optionally, a rigid structure can also be used to drive the rotation of the linkage member 7 .

Optionally, the link 7 is not limited to rotation, and the webbing or other rigid structures can also drive the link 7 to move linearly, such as to move along the seat post 3 .

The using method of the baby stroller frame in the present embodiment is as follows:

When the car is received, the webbing is pulled, and the webbing drives the linkage 7 to rotate, and the linkage 7 drives the rotating joint 6 to unlock. After unlocking, the ribbon drives the rear section of the seat bar 3 to be lifted and rotate relative to the connecting piece 4 . At this time, the handle pipe 5 is turned downwards, and the handle pipe 5 moves closer to the rear leg pipe 2 .

The linkage piece 7 drives the seat bar 3 to turn over at the same time, and the seat bar 3 and the connecting piece 4 rotate relatively so that the rear leg tube 2 and the front leg tube 1 move closer together.

When unfolding, the handle tube 5 is turned upwards, the handle tube 5 drives the rear leg tube 2 to expand backward through the support tube 9, and the rear leg tube 2 drives the seat bar 3 to rotate until the seat bar 3 and the connecting piece 4 are on the same plane. At this time, the handle pipe 5 is rotated to be docked with the front leg pipe 1 again, and the rotating joint 6 is locked again at this time to keep the stability of the unfolded state.

The utility model adopts the connecting rod structure composed of the connecting piece, the seat bar, the front leg tube and the rear leg tube, which not only increases the structural stability when unfolded, but also facilitates the auxiliary folding when the car is retracted.

What has been described above is only the principle and preferred embodiments of the present utility model. It should be pointed out that for those skilled in the art, several other modifications can be made on the basis of the principle of the utility model, which should also be regarded as the protection scope of the utility model.

Claims (10)

1. a kind of stroller frame, including front foot pipe, rear foot tube and seat post, the upper end of the rear foot tube and the front foot pipe It is rotatably connected, the middle section of the seat post is rotatably connected with the rear foot tube, which is characterized in that

The stroller frame further includes connection sheet, and the front end of the connection sheet is rotatably connected with the front foot pipe, the company The rear end of contact pin and the end of the seat post are rotatably connected；

When the stroller frame is unfolded, the connection sheet and the seat post are substantially at same straight line, the connection sheet, institute State seat post, the front foot pipe and rear foot tube composition triangular frame structure；

When the stroller frame returns the vehicle to the garage and knock off, relatively rotated between the connection sheet and the end of the seat post, the connection sheet, The seat post, the front foot pipe and the rear foot tube form quadrilateral frame structure.

2. stroller frame according to claim 1, which is characterized in that the stroller frame further includes handle tube, institute The upper end of the lower end and the front foot pipe of stating handle tube locks or unlocks rotation by cradle head.

3. stroller frame according to claim 2, which is characterized in that the stroller frame further includes being set to the seat The STATEMENT OF FEDERALLY SPONSORED for unlocking the cradle head is operated on the bar of position.

4. stroller frame according to claim 3, which is characterized in that the seat post include two be parallel to each other Second strut of two first struts of one strut and connection.

5. stroller frame according to claim 4, which is characterized in that the end of first strut and the connection sheet Rear end be rotatably connected, first strut is rotatably connected with the rear foot tube, the STATEMENT OF FEDERALLY SPONSORED include two, cover respectively Rear side on first strut and positioned at first strut and the rear foot tube junction.

6. stroller frame according to claim 4, which is characterized in that be connected with drawing article in the STATEMENT OF FEDERALLY SPONSORED, pull The drawing article drives the STATEMENT OF FEDERALLY SPONSORED that the cradle head can be made to unlock.

7. stroller frame according to claim 6, which is characterized in that the STATEMENT OF FEDERALLY SPONSORED is rotatably sheathed on described first On strut；

When the stroller frame returns the vehicle to the garage and knock off, the drawing article is pulled, the drawing article drives the STATEMENT OF FEDERALLY SPONSORED rotation, the linkage Part drives the cradle head unlock, and the upward belt of the drawing article is moved the seat post and the connection sheet relatively rotates.

8. stroller frame according to claim 6, which is characterized in that the STATEMENT OF FEDERALLY SPONSORED includes being set in the seat post On casing, offer guide groove in described sleeve pipe；

The guide groove is inclination arc groove, and the seat post is equipped with along axial straight line limiting slot, the cradle head with It is connected between the STATEMENT OF FEDERALLY SPONSORED by steel wire, the steel wire passes through the straight line limiting slot of seat post and the guide groove is fixed In in the STATEMENT OF FEDERALLY SPONSORED.

9. stroller frame according to claim 3, which is characterized in that be equipped with torsional spring, the torsional spring at the STATEMENT OF FEDERALLY SPONSORED It is mounted between the STATEMENT OF FEDERALLY SPONSORED and the seat post.

10. stroller frame according to claim 2, which is characterized in that the stroller frame further includes support tube, institute The upper end and the handle tube for stating support tube are rotatably connected, and the lower end of the support tube is rotatably connected with the rear foot tube.