A quick-fold stroller with front wheel rotational positioning

Abstract

The application discloses a quick folding baby stroller with rotatable front wheels, which comprises a frame with an unfolded state and a folded state, and the frame comprises a rear leg group, a front leg group and a handle group, the rear leg group is rotatably connected with the front leg group and the handle group respectively, the handle group is rotatably connected with the front leg group through a connecting piece, the connecting piece is rotated by rotating the handle group, the front leg group and the rear leg group are brought close to the folding state or away from the unfolding state, and the front wheel of the front leg group is rotated by the rotation of the connecting piece. The front wheel can be positioned by rotation following the folding action of the whole stroller, and the folding efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of infant stroller technology, and in particular to a quick-folding infant stroller with rotatable and positionable front wheels. Background Technology

[0002] Infant strollers are an essential part of daily life for infants and toddlers. Existing strollers are convenient to fold and carry when going out. However, during the folding process, the front wheels of existing strollers usually cannot rotate and position themselves in sync with the stroller's folding motion. The orientation of the front wheels needs to be manually adjusted, which is laborious and can affect folding efficiency if not done properly. Furthermore, the lack of positioning of the front wheels during packaging and transportation can easily cause them to deflect. Therefore, it is necessary to design an infant stroller in which the front wheels can rotate and position themselves in sync with the folding motion of the entire stroller to improve the efficiency of quick folding. Summary of the Invention

[0003] The purpose of this invention is to provide a quick-folding infant stroller with rotatable and positioning front wheels.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A quick-folding infant stroller with rotatable and positionable front wheels includes a frame having an unfolded state and a folded state, the frame comprising:

[0006] The rear foot assembly, front foot assembly, and handlebar assembly are described. The rear foot assembly is rotatably mounted to the front foot assembly and handlebar assembly, respectively. The handlebar assembly and the front foot assembly are rotatably mounted with a connecting piece. By rotating the handlebar assembly, the connecting piece can be adjusted to rotate and cause the front foot assembly and the rear foot assembly to move closer together or further apart to unfold. The rotation of the connecting piece also causes the front wheel of the front foot assembly to rotate.

[0007] The front foot assembly is provided with a front foot upper seat. The front wheel is rotatably mounted to the front foot upper seat via a rotating mechanism. The rotating mechanism includes an upper axle sleeve, a rotating seat, and a fixing buckle. The upper axle sleeve is disposed on the front foot upper seat. The rotating seat is disposed on the front mounting bracket of the front wheel and is rotatably mounted on the upper axle sleeve via a rotating shaft. The fixing buckle is movably mounted on the mounting part of the upper axle sleeve. The connecting piece is connected to a connecting line to pull the fixing buckle upward into the mounting part. The fixing buckle is connected to a spring that pushes it downward. The fixing buckle cooperates with the rotating part of the rotating seat to push the rotating seat to drive the front wheel to rotate.

[0008] Furthermore, the rotating part is a guide groove with an upward opening arranged around the rotating shaft. The guide groove is provided with a protrusion, a sliding part, and a positioning part. The two ends of the protrusion are respectively connected to the positioning part through the sliding part. The fixing buckle has a snap-fit ​​part that is slidably installed in the guide groove at its bottom. In the unfolded state, the snap-fit ​​part moves upward with the fixing buckle and retracts into the mounting part. In the retracted state, the snap-fit ​​part moves downward with the fixing buckle and embeds into the positioning part. Alternatively, the rotating seat rotates relative to the fixing buckle, so that the snap-fit ​​part slides along the protrusion and the sliding part and embeds into the positioning part.

[0009] Furthermore, the protrusion has two inclined surfaces at its two ends, which are respectively connected to the positioning part through the sliding part. The snap-fit ​​part slides in the guide groove along the inclined surface and / or the sliding part. The positioning part is a groove, and the snap-fit ​​part snaps into the positioning part.

[0010] Furthermore, the mounting part is a channel that is open at both ends. The upper shaft sleeve is fitted with a buckle cover on the top opening of the mounting part. The top of the fixing buckle is provided with a spring groove for installing a spring. One end of the spring is set in the spring groove and the other end is set at the bottom of the buckle cover.

[0011] Furthermore, the rear foot assembly includes a rear wheel and a rear foot frame. The rear wheel is located at the bottom of the rear foot frame. The rear foot frame is provided with a first rotating seat and a rear connecting rotating part. The handle assembly includes a connecting seat, a handle frame, a front support frame, and a rear support frame. The connecting seat is located on the handle frame. One end of the front support frame is rotatably mounted on the connecting seat, and the other end is rotatably mounted on the first rotating seat. One end of the rear support frame is rotatably mounted to the end of the handle frame, and the other end is rotatably mounted to the rear connecting rotating part and the connector respectively through a connecting rotating frame. The handle frame and the rear support frame rotate and fold closer to the front support frame, driving the connecting rotating frame to rotate and rotate and fold upward with the connector. The connector pulls the front foot assembly closer to the rear foot frame and pulls the connecting line and the rotating mechanism to adjust the front wheel.

[0012] Furthermore, the rear leg is provided with a second rotating seat at the top, the front leg seat has an insertion port at the top and a lower mounting cavity for installing the upper bushing at the bottom. The front leg assembly includes a front leg, one end of which is rotatably mounted to the second rotating seat and the other end is inserted into the front leg seat. The connector is rotatably mounted to the front leg seat.

[0013] Furthermore, the front foot seat has a side tube on its side wall, and the connector is rotatably mounted on the side tube through a rotating sleeve. The rotating sleeve includes a insertion tube and a rotating sleeve. The insertion tube is disposed on the side wall of the rotating sleeve, the connector is inserted into the insertion tube, and the rotating sleeve is rotatably mounted on the side tube.

[0014] By adopting the above technical solution, the present invention has the following advantages compared with the prior art:

[0015] This invention allows the user to rotate the handlebar assembly, moving it closer to the rear foot assembly for folding or away from it for unfolding. The rotation of the handlebar assembly on the rear foot assembly drives the connecting piece to rotate. The connecting piece pulls the front foot assembly to rotate closer to the rear foot assembly, or pushes the front foot assembly to rotate away from the rear foot assembly. During rotation, the connecting piece pulls or releases the connecting line connected to the rotating mechanism. During unfolding, the connecting line pulls the fixing buckle of the rotating mechanism into the upper axle sleeve, allowing the rotating seat to drive the front wheel to rotate freely. During folding, the connecting line releases the fixing buckle of the rotating mechanism into the rotating part of the rotating seat. The rotating seat engages with the fixing buckle and rotates to the positioning position, enabling the front wheel to rotate and position in sync with the folding action of the entire vehicle, thus improving folding efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the invention in a semi-closed configuration;

[0017] Figure 2 This is an exploded structural diagram of the present invention;

[0018] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0019] Figure 4 This is a schematic diagram of the specific structure of the rotating base of the present invention;

[0020] Figure 5 This is a cross-sectional view of the rotating mechanism and front wheel assembly of the present invention in an unfolded state;

[0021] Figure 6 This is a cross-sectional view of the rotating mechanism and front wheel assembly of the present invention in their retracted state;

[0022] Figure 7 This is a side view of the unfolded state of the present invention;

[0023] Figure 8 This is a side view of the invention in its semi-closed state;

[0024] Figure 9 This is a side view of the retracted state of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] Rear leg assembly.1; Front leg assembly.2; Handle assembly.3; Connector.4; Rotating mechanism.5; Rear wheel.11; Rear leg frame.12; First rotating seat.13; Rear connecting rotating part.14; Second rotating seat.14; Front wheel.21; Front leg upper seat.22; Front leg frame.23; Connecting seat.31; Handle frame.32; Front support frame.33; Rear support frame.34; Connecting rotating frame.35; Upper bushing.51; Rotating seat.52; Fixing buckle.53; Rotating shaft.54; Mounting part.55; Connecting line.56; Spring.57; Guide groove.58; Buckle cover.59; Snap-fit ​​part.531; Protrusion.581; Sliding part.582; Positioning part.583. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0028] It should be noted that in this invention, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element of this invention must have a specific orientation, and therefore should not be construed as a limitation of this invention.

[0029] Example

[0030] Cooperate Figures 1 to 9 As shown, this invention discloses a quick-folding infant stroller with rotatable and positioning front wheels, including a frame having an unfolded state and a folded state. The frame includes:

[0031] The rear leg assembly 1, the front leg assembly 2, and the handle assembly 3 are rotatably mounted to the front leg assembly 2 and the handle assembly 3, respectively. The handle assembly 3 and the front leg assembly 2 are rotatably mounted with a connecting piece 4. By rotating the handle assembly 3, the connecting piece 4 is adjusted to rotate and drive the front leg assembly 2 and the rear leg assembly 1 to move closer together or further apart. The connecting piece 4 rotates and drives the front wheel 21 of the front leg assembly 2 to rotate.

[0032] The front foot assembly 2 is provided with a front foot seat 22. The front wheel 21 is rotatably mounted to the front foot seat 22 via a rotating mechanism 55. The rotating mechanism 55 includes an upper bushing 51, a rotating seat 52, and a fixing buckle 53. The upper bushing 51 is set on the front foot seat 22. The rotating seat 52 is set on the front mounting bracket of the front wheel 21 and is rotatably mounted on the upper bushing 51 via a rotating shaft 54. The fixing buckle 53 is movably mounted on the mounting part 55 of the upper bushing 51. The connecting piece 4 is pulled upward into the mounting part 55 by a connecting line 56. The fixing buckle 53 is connected to a spring 57 that pushes it downward. The fixing buckle 53 cooperates with the rotating part of the rotating seat 52 to push the rotating seat 52 to drive the front wheel 21 to rotate.

[0033] The front mounting bracket consists of two symmetrically arranged frames. The front wheel 21 is rotatably mounted on the bottom of the frame via a rotating shaft 54. The rotating seat 52 is clamped between the tops of the two frames and fixed by bolts. The rotating seat 52 has an insertion hole in the middle, and the rotating shaft 54 ​​is inserted into the insertion hole. The rotating shaft 54, the rotating seat 52, and the front mounting bracket are provided with aligned fastening holes and are fixed by bolts. The rotating seat 52 can be fixed by bolts and cannot be rotated, or the angle can be adjusted by rotating on the bolts. This embodiment does not limit this.

[0034] The connection method of the connecting wire 56 is not limited in this embodiment, but is preferably welding, bonding or having corresponding holes on the connector for insertion and fixation.

[0035] The upper bushing 51 has a shaft hole that is open at both ends. The rotating shaft 54 ​​is inserted into the shaft hole and installed with the front foot seat 22. The front foot seat 22 is provided with a limiting part that cooperates with the rotating shaft 54. In this embodiment, the rotating shaft 54 ​​has a locking groove around its side wall. The limiting part is a limiting plate with a limiting opening. The rotating shaft 54 ​​passes through the limiting opening and is locked with the limiting plate through the locking groove. The rotating shaft 54 ​​rotates in the limiting opening, and the limiting plate restricts its fall. The method of assembling and disassembling the rotating shaft 54 ​​and the limiting plate is not limited in this embodiment. The rotating shaft 54 ​​may have a tapered part at its top to allow it to quickly pass through the limiting opening. A movable spring 57 is provided on one side of the limiting plate, so that the limiting plate is spliced ​​at the limiting opening. The rotating shaft 54 ​​passes through the limiting opening and pushes the limiting plate with the movable spring to compress the movable spring. After the limiting plate moves into the locking groove, it resets and the locking is completed. The disassembly and assembly are not limited in this embodiment. A disassembly structure may not be provided, or a structure with an adjustable movable limiting plate may be provided.

[0036] The bottom of the upper bushing 51 rotates on the top of the rotating seat 52 and is provided with a matching structure. The bottom of the upper bushing 51 is provided with an annular locking plate / annular locking groove, and the top of the rotating seat 52 is provided with an annular locking groove / annular locking plate that matches it.

[0037] By rotating the handlebar assembly 3 relative to the rear foot assembly 1, the handlebar assembly 3 moves closer to the rear foot assembly 1 for folding or moves further away from the rear foot assembly 1. The rotation of the handlebar assembly 3 on the rear foot assembly 1 drives the connecting piece 4 to rotate. The connecting piece 4 pulls the front foot assembly 2 to rotate closer to the rear foot assembly 1, or pushes the front foot assembly 2 to rotate and move away from the rear foot assembly 1. During the rotation, the connecting piece 4 pulls or releases the connecting line 56 connected to the rotating mechanism 5. During the unfolding process, the connecting line 56 pulls the fixing buckle 53 of the rotating mechanism 5 back into the upper shaft sleeve 51, allowing the rotating seat 52 to drive the front wheel 21 to rotate freely. During the folding process, the connecting line 56 releases the fixing buckle 53 of the rotating mechanism 5 and enters the rotating part of the rotating seat 52. The rotating seat 52 cooperates with the fixing buckle 53 and rotates to the positioning position, so that the front wheel 21 can rotate and position with the folding action of the whole vehicle, improving the folding efficiency.

[0038] The rotating part is a guide groove 58 with an upward opening surrounding the rotating shaft 54. The guide groove 58 is provided with a protrusion 581, a sliding part 582 and a positioning part 583. The two ends of the protrusion 581 are respectively connected to the positioning part 583 through the sliding part 582. The fixing buckle 53 has a locking part 531 at its bottom that is slidably installed in the guide groove 58. In the unfolded state, the locking part 531 moves upward with the fixing buckle 53 and retracts into the mounting part 55. In the retracted state, the locking part 531 moves downward with the fixing buckle 53 and embeds into the positioning part. Alternatively, the rotating seat 52 rotates relative to the fixing buckle 53, so that the locking part 531 slides along the protrusion 581 and the sliding part 582 and embeds into the positioning part 583.

[0039] The protrusion 581 has two inclined surfaces at its two ends and is connected to the positioning part 583 through the sliding part 582 respectively. The snap-fit ​​part 531 slides in the guide groove 58 along the inclined surface or the sliding part. The positioning part 583 is a groove, and the snap-fit ​​part 531 snaps into the positioning part 583.

[0040] The sliding part 582 is preferably an inclined surface extending from the protrusion 581 to the positioning part 583. The engaging part 531 sequentially extends from the protrusion 581 and the sliding part 582 on either side of the protrusion 581 to the positioning part 583, and is embedded in the positioning part 583 to complete rotational positioning. When the connecting line 56 pulls the fixing buckle 53 and the engaging part 531 out of the positioning part 583 along with the connecting piece 4, the positioning and engaging state is released. Then, according to the direction of movement of the front wheel 21, when the front wheel 21 moves forward, the rotating seat 52 rotates, and the engaging part 531 slides along the sliding part 582 to the protrusion 581. When the front wheel 21 moves backward, the rotating seat 52 rotates, and the engaging part 531 moves to above the positioning part 583, but does not engage with the positioning part 583. In the unfolded state, the rotating seat 52 can rotate freely according to the direction of movement of the front wheel 21.

[0041] In this embodiment, when the rotating seat 52 drives the front wheel 21 to rotate to the retracted positioning direction, the entire vehicle is tilted forward during retraction, causing the rotating seat 52 to drive the front wheel 21 to rotate quickly to the positioning position.

[0042] The mounting part 55 is a channel that is open from top to bottom. The upper bushing 51 has a cover 59 at the top opening of the mounting part 55. The top of the fixing buckle 53 has a spring groove for mounting a spring 57. One end of the spring 57 is set in the spring groove and the other end is set at the bottom of the cover 59.

[0043] Rear leg assembly 1 includes a rear wheel 11 and a rear leg frame 12. The rear wheel 11 is located at the bottom of the rear leg frame 12. The rear leg frame 12 is provided with a rear mounting bracket that is rotatably mounted to the rear wheel 11. The structure of the rear mounting bracket is prior art and is not limited in this embodiment. The rear leg frame 12 is provided with a first rotating seat 13 and a rear connecting rotating part 14. Handle assembly 3 includes a connecting seat 31, a handle frame 32, a front support frame 33, and a rear support frame 34. The connecting seat 31 is located on the handle frame 32, and one end of the front support frame 33 is rotatably mounted on the connecting seat 32. The other end of the connecting seat 31 is rotatably mounted on the first rotating seat 13. One end of the rear support frame 34 is rotatably mounted to the end of the handle frame 32, and the other end is rotatably mounted to the rear connecting rotating part 14 and the connecting piece 4 respectively through a connecting rotating frame 35. The handle frame 32 and the rear support frame 34 rotate and fold close to the front support frame 33, driving the connecting rotating frame 35 to rotate and the connecting piece 4 to rotate and fold upward. The connecting piece 4 pulls the front foot assembly 2 close to the rear foot frame 12 and pulls the connecting line 56 and the rotating mechanism 5 to adjust the front wheel 21.

[0044] The rear connecting rotating part is a rotating hole set on the rear foot, and the connecting rotating frame is hinged in the rotating hole by a hinge.

[0045] The front leg assembly 2 also includes a front leg 23, one end of which is hinged to the rear leg 12, and the other end is inserted into the front leg seat 22. After insertion, it can be fixed by screws or other fasteners.

[0046] Each front stand, rear stand 12, and handle stand 32 consists of two symmetrical frames connected by a connecting frame. The connecting frame supports the two frames to improve structural stability. The connection method can be either through the insertion and mating of the tubes set on the frame or through screw connection. This embodiment does not limit the method.

[0047] In this embodiment, the front wheel 21 is provided in two sets, the corresponding front foot seat 22 and the rotating mechanism 5 are provided in two sets, the rear wheel 11 is provided in two sets, and the connecting member 4 is provided in two sets.

[0048] The frame also includes multiple guardrails for placing infant seats. Each guardrail is hinged to the front and rear legs 12. When unfolded, the infant seat can be placed. When folded, the infant seat can also be folded together. The infant seat can be fitted with a seat cover on each guardrail.

[0049] The rotational installation method between each handle 32, front stand and rear stand 12 is preferably achieved by hinge, with a rotating shaft 54 ​​for connection or by a rotating joint for installation, but this embodiment is not limited.

[0050] The rear leg 12 is also provided with a second rotating seat 14 at the top. The front leg upper seat 22 is provided with a insertion port at the top and a lower mounting cavity for installing the upper bushing 51 at the bottom. One end of the front leg is rotatably mounted with the second rotating seat 14, and the other end is inserted and mounted on the front leg upper seat 22. The connector 4 is rotatably mounted with the front leg upper seat 22.

[0051] The front foot seat 22 has a side tube on its side wall. The connector 4 is rotatably installed on the side tube through a rotating sleeve. The rotating sleeve includes a insertion tube and a rotating sleeve. The insertion tube is set on the side wall of the rotating sleeve. The connector 4 is inserted into the insertion tube and rotatably installed on the side tube.

[0052] The front foot seat 22 has two parts, which are respectively installed with the two front wheels 21. The two side tubes of the two front foot seats are arranged opposite each other, and a connecting tube is inserted between the two side tubes.

[0053] When folded, the bottom of the handle 32 is folded downwards and rotated counterclockwise relative to the rear support frame 34. The handle 32 folds from its original position on the same straight line as the rear support frame 34 and moves closer to the front support frame 33. The rear support frame 34 folds downwards and rotates relative to the rear foot 12. The rear support frame 34 rotates clockwise upwards through the connecting rotating frame 35, causing the connecting piece 4 to rotate and fold. The connecting rotating frame 35 and the connecting piece 4, which were originally V-shaped, become inverted V-shaped. The connecting piece 4 rotates counterclockwise upwards around the front foot, pulling the front foot closer to the rear foot 12, thereby releasing the connecting line 56. The rotating mechanism 5 then cooperates with the front wheel 21 to rotate and position it.

[0054] The unfolding process is the reverse operation: opening the handle frame causes each frame to rotate and unfold sequentially.

[0055] In this embodiment, the rotating seat 52 cooperates with the upper bushing 51, and the snap-fit ​​portion 531 of the fixing buckle 53 needs to rotate 180 degrees from the protrusion portion 581 to the positioning portion 583.

[0056] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A quick-folding infant stroller with rotatable and positioning front wheels, characterized in that, The vehicle frame includes a frame having an extended state and a retracted state, the frame comprising: The device comprises a rear leg assembly, a front leg assembly, and a handlebar assembly. The rear leg assembly is rotatably mounted to the front leg assembly and the handlebar assembly. The handlebar assembly is rotatably mounted to the front leg assembly via a connecting piece. Rotating the handlebar assembly adjusts the rotation of the connecting piece, causing the front leg assembly and the rear leg assembly to move closer together or further apart. Rotating the connecting piece causes the front wheel of the front leg assembly to rotate. The front foot assembly is provided with a front foot upper seat. The front wheel is rotatably mounted to the front foot upper seat through a rotating mechanism. The rotating mechanism includes an upper axle sleeve, a rotating seat, and a fixing buckle. The upper axle sleeve is set on the front foot upper seat. The rotating seat is set on the front mounting bracket of the front wheel and is rotatably mounted on the upper axle sleeve through a rotating shaft. The fixing buckle is movably mounted on the mounting part of the upper axle sleeve. The connecting piece is pulled upward into the mounting part by a connecting line. The fixing buckle is connected to a spring that pushes it downward. The fixing buckle cooperates with the rotating part of the rotating seat to push the rotating seat to drive the front wheel to rotate. The rotating part is a guide groove with an upward opening arranged around the rotating shaft. The guide groove is provided with a protrusion, a sliding part and a positioning part. The two ends of the protrusion are respectively connected to the positioning part through the sliding part. The fixing buckle has a snap-fit ​​part that is slidably installed in the guide groove at its bottom. In the unfolded state, the snap-fit ​​part moves upward with the fixing buckle and retracts into the mounting part. In the closed state, the snap-fit ​​part moves downward with the fixing buckle and embeds into the positioning part. Alternatively, the rotating seat rotates relative to the fixing buckle, so that the snap-fit ​​part slides along the protrusion and the sliding part and embeds into the positioning part. The protrusion has two inclined surfaces at its two ends and is connected to the positioning part through a sliding part. The snap-fit ​​part slides in the guide groove along the inclined surface / sliding part. The positioning part is a groove. The snap-fit ​​part snaps into the positioning part. The mounting part is a channel that is open at the top and bottom. The upper shaft sleeve is fitted with a buckle cover on the top opening of the mounting part. The top of the fixing buckle is provided with a spring groove for installing a spring. One end of the spring is set in the spring groove and the other end is set at the bottom of the buckle cover. The rear leg assembly includes a rear wheel and a rear leg frame. The rear wheel is located at the bottom of the rear leg frame, and the rear leg frame is provided with a first rotating seat and a rear connecting rotating part.

2. The quick-folding infant stroller with rotatable and positioning front wheels as described in claim 1, characterized in that: The handlebar assembly includes a connecting seat, a handlebar frame, a front support frame, and a rear support frame. The connecting seat is mounted on the handlebar frame. One end of the front support frame is rotatably mounted on the connecting seat, and the other end is rotatably mounted on a first rotating seat. One end of the rear support frame is rotatably mounted to the end of the handlebar frame, and the other end is rotatably mounted to a rear connecting rotating part and a connecting piece via a connecting rotating frame. The handlebar frame and the rear support frame rotate and fold closer to the front support frame, causing the connecting rotating frame to rotate and the connecting piece to rotate and fold upwards. The connecting piece pulls the front foot assembly closer to the rear foot frame and pulls the connecting line and the rotating mechanism to adjust the front wheel.

3. A quick-folding infant stroller with rotatable and positioning front wheels as described in claim 2, characterized in that: The rear leg is also provided with a second rotating seat at the top. The front leg seat has an insertion port at the top and a lower mounting cavity for installing the upper bushing at the bottom. The front leg assembly includes a front leg. One end of the front leg is rotatably mounted to the second rotating seat, and the other end is inserted into the front leg seat. The connector is rotatably mounted to the front leg seat.

4. A quick-folding infant stroller with rotatable and positioning front wheels as described in claim 3, characterized in that: The front foot seat has a side tube on its side wall. The connector is rotatably mounted on the side tube through a rotating sleeve. The rotating sleeve includes a insertion tube and a rotating sleeve. The insertion tube is located on the side wall of the rotating sleeve. The connector is inserted into the insertion tube. The rotating sleeve is rotatably mounted on the side tube.

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