A baby stroller that is convenient to unfold and fold

Abstract

The utility model provides a baby stroller that is easy to unfold and fold, comprising: a base frame, a front rocker, a rear rocker, a push rod, a handle, a rotating joint, a connecting part and a baby carrier; a pair of front wheels is arranged at the front end of the base frame, and a pair of rear wheels is arranged at the rear end of the base frame; the lower ends of the two front rockers are hinged to the front part of the base frame; the lower ends of the two rear rockers are hinged to the rear part of the base frame; the front ends of the two push rods are respectively hinged to the upper end of a front rocker, and the middle front parts of the two push rods are respectively hinged to the upper end of a rear rocker; the handle is connected between the rear ends of the two push rods; the rotating joint is arranged at the hinge of the front rocker and the push rod, and a locking mechanism is arranged in the rotating joint, and the locking mechanism is used to lock the position of the front rocker and the push rod after they are unfolded; the two connecting parts are respectively arranged at the middle parts of the push rods; sockets are respectively arranged on both sides of the baby carrier, and each socket is detachably connected to a connecting part.

Description

Technical Field

[0001] The utility model belongs to the field of baby carriages, and in particular relates to a baby carriage which is convenient to unfold and fold. Background Art

[0002] In order to facilitate packaging, transportation and storage, baby strollers often adopt an expandable structure, which can push and carry the baby seat when unfolded, and reduce the volume when folded, so that it can be placed in the car or cabinet for easy storage. At present, most expandable baby strollers have more folding structures, which require multiple folding and unfolding operations during the unfolding and folding process, requiring users to do it many times, and it is easy to pinch hands during the unfolding and folding process, or it takes a lot of effort. Some also have requirements on the order of unfolding and folding operations, which is not convenient for some users. Utility Model Content

[0003] In view of this, an object of the present invention is to provide a baby stroller that is convenient to unfold and fold, so as to overcome the above problems or at least partially solve or alleviate the above problems.

[0004] The utility model provides a baby stroller that is convenient to unfold and fold, comprising:

[0005] A chassis, wherein a pair of front wheels is disposed at the front end of the chassis, and a pair of rear wheels is disposed at the rear end of the chassis;

[0006] Front rockers, the lower ends of the two front rockers are hinged to the front part of the chassis;

[0007] Rear rockers, the lower ends of the two rear rockers are hinged to the rear of the chassis;

[0008] Push rods, the front ends of the two push rods are respectively hinged to the upper end of one of the front rockers, and the middle front parts of the two push rods are respectively hinged to the upper end of one of the rear rockers;

[0009] A handle connected between the rear ends of the two push rods;

[0010] A rotating joint, the rotating joint is arranged at the hinge of the front rocker and the push rod, and a locking mechanism is arranged in the rotating joint, and the locking mechanism is used to lock the position of the front rocker and the push rod after they are unfolded;

[0011] A connecting part, wherein two connecting parts are respectively arranged at the middle part of the push rod;

[0012] A baby carrier, wherein sockets are respectively arranged on both sides of the baby carrier, and each of the sockets is detachably connected to one of the connecting parts.

[0013] The utility model also has the following optional features.

[0014] Optionally, the locking mechanism in the rotating joint includes an upper hinge head and a lower hinge head hinged together, the edge of the lower hinge head is concavely provided with a bayonet, and a slider is slidably assembled on the upper hinge head, and the end of the slider is protrudingly provided with a clamping head, which matches the bayonet.

[0015] Optionally, a spring is arranged between the slider and the upper hinge head, and the spring pushes the slider downward. A pull rope is connected to the rear end of the slider, and hook pieces are arranged at the upper ends of the two push rods, and the inner ends of the two hook pieces are respectively connected to the upper end of one of the pull ropes.

[0016] Optionally, a baffle is further provided in the rotating joint, and the baffle is provided on the outer side of the upper end of the lower hinged head.

[0017] Optionally, a hinge portion is respectively provided at the middle front portion of the two push rods, and the upper end of each rear rocker is hinged to the hinge portion.

[0018] Optionally, the handle is in a U-shaped structure, and both ends of the handle are respectively matched with two push rod sliding sleeves.

[0019] The conveniently unfolded baby stroller of the utility model has the following beneficial effects:

[0020] The base frame, the front rocker, the rear rocker and the push rod in the utility model form a four-link rocking mechanism, which can realize the unfolding and folding actions by rotating the joint to drive the front rocker and the push rod, thereby driving the push rod to swing downward and drive the baby carrier to descend, thereby realizing the automatic unfolding and folding functions of the baby stroller. The user does not need to manually unfold and fold the baby stroller frame, which is convenient for the user to use and store, and improves the convenience of the baby stroller product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the conveniently unfoldable baby stroller of the utility model in an unfolded state;

[0022] Figure 2 yes Figure 1 The internal structure diagram of the revolute joint in ;

[0023] Figure 3 yes Figure 1 FIG. 1 is a structural diagram of the internal baffle of the rotating joint;

[0024] Figure 4 The utility model is a schematic diagram of the structure of a folded state of an embodiment of the conveniently unfolded and folded baby carriage.

[0025] In the above figure: 1. chassis; 2. front wheel; 3. rear wheel; 4. front rocker; 5. rear rocker; 6. push rod; 7. handle; 8. rotating joint; 801. upper hinge; 802. lower hinge; 803. bayonet; 804. pin; 805. baffle; 9. connecting part; 10. baby carrier; 11. socket; 12. slider; 121. clamp; 13. hook; 14. hinge; 15. unlock button.

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0027] Example 1

[0028] refer to Figure 1 and Figure 4 The embodiment of the utility model provides a baby stroller that is convenient to unfold and fold, comprising: a base frame 1, a front rocker 4, a rear rocker 5, a push rod 6, a handle 7, a rotating joint 8, a connecting portion 9 and a baby carrier 10; a pair of front wheels 2 are arranged at the front end of the base frame 1, and a pair of rear wheels 3 are arranged at the rear end of the base frame 1; the lower ends of the two front rockers 4 are hinged to the front part of the base frame 1; the lower ends of the two rear rockers 5 are hinged to the rear part of the base frame 1; the front ends of the two push rods 6 are respectively hinged to the upper ends of one front rocker 4, and the two push rods 6 are respectively hinged to the upper ends of one front rocker 4, and the two push rods 6 are respectively hinged to the upper ends of the two front rockers 4. The middle front part of each push rod 6 is hinged to the upper end of a rear rocker 5; the handle 7 is connected between the rear ends of the two push rods 6; the rotating joint 8 is arranged at the hinge of the front rocker 4 and the push rod 6, and a locking mechanism is arranged in the rotating joint 8, which is used to lock the position after the front rocker 4 and the push rod 6 are unfolded; the two connecting parts 9 are respectively arranged in the middle part of the push rod 6; the sockets 11 are respectively arranged on both sides of the baby carrier 10, and each socket 11 is detachably connected to a connecting part 9.

[0029] A driving mechanism, a braking mechanism and a battery pack can be arranged between the two rear wheels 3. The driving mechanism can drive the rear wheels 3 to rotate, and the battery pack can supply power to the driving mechanism. When the push rod 6 is fully extended, the end of the connecting portion 9 is vertically facing upward; the baby carrier 10 can be a baby basket or a baby seat; the baby carrier 10 can rotate relative to the sockets 11 at both ends thereof, and the baby carrier 10 is provided with a rotation positioning buckle and an unlocking button. Each socket 11 is also connected to the corresponding connecting portion 9 through a plug-in buckle, and the socket 11 is provided with an unlocking button corresponding to the plug-in buckle.

[0030] When the user pulls up the push rod 6 through the handle 7, the push rod 6 drives the front rocker 4 and the rear rocker 5 to rotate to the unfolded state, the upper end of the front rocker 4 and the lower end of the push rod 6 are aligned, the front rocker 4 and the push rod 6 are in line, and form a triangular frame with the base frame 1 and the rear rocker 5. The two push rods 6 support the baby carrier 10 at a suitable height, and the user can push and control the baby carriage through the handle 7.

[0031] When the front rocker 4 and the push rod 6 are rotated to the folded state, the front rocker 4 swings forward relative to the base frame 1, and the push rod 6 swings backward while being pulled forward by the front rocker 4. At the same time, the rear rocker 5 swings forward under the traction of the push rod 6 until the front rocker 4 and the push rod 6 are folded to a parallel state. At this time, the baby carrier 10 on the push rod 6 falls onto the base frame 1, and the handle 7 is also driven by the push rod 6 to swing downward onto the base frame 1. At this time, the baby carriage is in the folded state, which is convenient for users to receive and store.

[0032] Example 2

[0033] refer to Figure 2 and Figure 3 On the basis of Example 1, the locking mechanism in the rotating joint 8 includes an upper hinge head 801 and a lower hinge head 802 hinged together, the edge of the lower hinge head 802 is concavely provided with a bayonet 803, and a slider 12 is slidably assembled on the upper hinge head 801, and a clamp head 121 is protruding at the end of the slider 12, and the clamp head 121 matches the bayonet 803.

[0034] The upper hinge head 801 and the lower hinge head 802 are hinged by a pin shaft 804, the other end of the upper hinge head 801 is fixedly connected to the push rod 6, and the other end of the lower hinge head 802 is fixedly connected to the front rocker 4; a recessed bayonet 803 is provided on the front edge of the lower hinge head 802, and a slide groove is provided on one side of the upper hinge head 801, and the slider 12 is slidably assembled in the slide groove, and a protruding clamping head 121 is provided at the front end of the slider 12. By moving the slider 12 forward and inserting the clamping head 121 into the bayonet 803, the upper hinge head 801 and the lower hinge head 802 can be clamped to achieve the locking of the rotating joint 8. Conversely, the clamping head 121 can be pulled out of the bayonet 803 to unlock the rotating joint 8.

[0035] Example 3

[0036] refer to Figure 1 and Figure 2 On the basis of Example 1, a spring is arranged between the slider 12 and the upper hinge head 801, and the spring pushes the slider 12 downward. A pull rope is connected to the rear end of the slider 12, and hook pieces 13 are arranged at the upper ends of the two push rods 6. The inner ends of the two hook pieces 13 are respectively connected to the upper end of a pull rope.

[0037] The inner side of the slider 12 is provided with a groove for accommodating a spring, one end of the spring is pressed against the upper hinge head 801, and the other end is pressed against the inner side of the front part of the slider 12. The pull rope is connected to the slider 12, and the slider 12 can be pulled backward by pulling the hook member 13, so that the spring is in a compressed state, and the clamp head 121 is withdrawn from the bayonet 803, so that the rotating joint 8 is unlocked, and the rotating joint 8 can be rotated at this time. After the rotating joint 8 is rotated to a certain position, the clamp head 121 is aligned with the bayonet 803, and then the hook member 13 is released, the slider 12 loses the backward force, and the spring can push the slider 12 to move forward, and the clamp head 121 is inserted into the bayonet 803, and the rotating joint 8 is locked and cannot be rotated.

[0038] Example 4

[0039] refer to Figure 1 and Figure 3 On the basis of Example 1, a baffle 805 is further provided in the rotating joint 8, and the baffle 805 is provided on the outer side of the upper end of the lower hinge head 802.

[0040] The baffle 805 is placed on the outer side of the upper end of the lower hinge head 802. When the clamp head 121 is inserted into the bayonet 803, the baffle 805 can prevent the clamp head 121 from sliding out of the bayonet 803 laterally. At the same time, the baffle 805 squeezes the lower hinge head 802 laterally to provide a certain damping to prevent the rotating joint 8 from rotating too fast.

[0041] Example 5

[0042] refer to Figure 1 and Figure 4 On the basis of Example 1, the middle front parts of the two push rods 6 are respectively provided with hinge parts 14, and the upper end of each rear rocker 5 is hinged on the hinge part 14.

[0043] The two hinged portions 14 are respectively connected to the lower sides of the middle front portions of the two push rods 6 and are located directly below the connecting portion 9 .

[0044] Example 6

[0045] refer to Figure 1 and Figure 4 On the basis of Example 1, the handle 7 is in a U-shaped structure, and the two ends of the handle 7 are respectively slidably fitted with the two push rods 6.

[0046] The two ends of the handle 7 form a sliding sleeve structure with the two push rods 6, which has a telescopic function. A sliding positioning mechanism is arranged between the two ends of the handle 7 and the upper ends of the two push rods 6, which can control the extension length of the handle 7 relative to the push rods 6. Unlocking buttons 15 are arranged on both sides of the handle 7. The sliding positioning mechanism can be released by pressing the unlocking button 15.

[0047] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims. The components and structures not described in detail in this embodiment are well-known components and common structures or common means in the industry, and are not described here one by one.

Claims

1. A baby stroller that is easy to unfold and fold, characterized in that: include: A chassis (1), wherein a pair of front wheels (2) are arranged at the front end of the chassis (1), and a pair of rear wheels (3) are arranged at the rear end of the chassis (1); Front rockers (4), the lower ends of the two front rockers (4) being hinged to the front part of the base frame (1); Rear rockers (5), the lower ends of the two rear rockers (5) being hinged to the rear of the chassis (1); Push rods (6), the front ends of the two push rods (6) are respectively hinged to the upper end of one of the front rockers (4), and the middle front parts of the two push rods (6) are respectively hinged to the upper end of one of the rear rockers (5); A handle (7), the handle (7) being connected between the rear ends of the two push rods (6); A rotating joint (8), the rotating joint (8) being arranged at a hinged position between the front rocker (4) and the push rod (6), a locking mechanism being arranged in the rotating joint (8), the locking mechanism being used for locking the position of the front rocker (4) and the push rod (6) after they are unfolded; A connecting portion (9), wherein two connecting portions (9) are respectively arranged at the middle portion of the push rod (6); A baby carrier (10), wherein sockets (11) are respectively arranged on both sides of the baby carrier (10), and each of the sockets (11) is detachably connected to one of the connecting parts (9).

2. The conveniently deployable baby stroller according to claim 1, characterized in that: The locking mechanism in the rotating joint (8) comprises an upper hinge head (801) and a lower hinge head (802) which are hinged together, the edge of the lower hinge head (802) is concavely provided with a bayonet (803), a slider (12) is slidably mounted on the upper hinge head (801), the end of the slider (12) is protrudingly provided with a clamping head (121), and the clamping head (121) matches the bayonet (803).

3. The conveniently deployable baby stroller according to claim 2, characterized in that: A spring is arranged between the slider (12) and the upper hinged head (801), and the spring pushes the slider (12) downward. The rear end of the slider (12) is connected to a pull rope. The upper ends of the two push rods (6) are provided with hook pieces (13), and the inner ends of the two hook pieces (13) are respectively connected to the upper end of one of the pull ropes.

4. The conveniently deployable baby stroller according to claim 2, characterized in that: A blocking piece (805) is also provided in the rotating joint (8), and the blocking piece (805) is provided on the outer side of the upper end of the lower hinged head (802).

5. The conveniently deployable baby stroller according to claim 1, characterized in that: A hinge part (14) is respectively provided at the middle front part of the two push rods (6), and the upper end of each rear rocker (5) is hinged on the hinge part (14).

6. The conveniently deployable baby stroller according to claim 1, characterized in that: The handle (7) is in a U-shaped structure, and the two ends of the handle (7) are respectively slidably fitted with the two push rods (6).

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