New foldable and extendable structure of baby carriage

Abstract

The invention discloses a novel folding and extending structure of a baby carriage, which comprises a carriage frame, a carriage arm and a state conversion device; the state conversion device comprises a locking member, a pulling member, a sliding member and a base member for accommodating the locking member; the base member has a cavity, and the locking member is placed in the cavity; the sliding member is provided with a guide groove, and the sliding member is connected with the base member so that the locking member in the cavity is connected to the guide groove; the carriage arm is provided with a connecting hole, and the sliding member moves relative to the base member so that the locking member moves along the guide groove to control the locking member to extend or retract into the cavity, so as to adjust the connection state of the locking member and the connecting hole; the carriage frame is provided with a rotating head, and the rotating head is provided with a latch tooth, and the rotating head is provided with a latch block; the sliding member is connected with the latch block through the pulling member, and the sliding member moves relative to the base member so that the pulling member pulls the latch block to adjust the rotation state of the rotating head. It has the advantages of simple structure, excellent effect, convenient disassembly, reasonable design and the like; therefore, it is a product with superior performance in both technical and economic aspects.

Description

[Technical field]

[0001] The invention mainly relates to a novel folding and extending structure of a baby carriage. [Background technology]

[0002] A baby stroller is a tool designed to facilitate outdoor activities for babies. It is also the baby's favorite means of transportation for walking and a must-have for mothers when they take their babies shopping. However, according to the baby's growth and usage, baby strollers can be divided into many categories.

[0003] There are many significant disadvantages of current baby strollers: First, most baby strollers cannot be folded, which means that they take up a lot of space when not in use and are not easy to store; second, among the baby strollers that can be folded, their folding mechanisms are relatively complex, and it takes a lot of time and effort to fold them. In view of this, we have improved the structure of the baby stroller and optimized the rotating and unfolding part to make the baby stroller more convenient to store. [Summary of the invention]

[0004] The present invention simplifies the rotating and unfolding part of the baby stroller, making it more convenient to store the baby stroller. The folding and extending structure of the new baby stroller adopts the following technical solutions:

[0005] A novel foldable and extendable baby carriage structure, comprising a carriage frame, carriage arms and a state conversion device;

[0006] The state conversion device comprises a locking member, a pulling member, a sliding member, and a base member for accommodating the locking member; the base member has a cavity, and the locking member is placed in the cavity; the sliding member is provided with a guide groove, and the sliding member is connected to the base member so that the locking member in the cavity is connected to the guide groove;

[0007] The vehicle arm is provided with a connection hole, and the sliding member moves relative to the base member, so that the locking member moves along the guide groove to control the locking member to extend or retract into the cavity, so as to adjust the connection state between the locking member and the connection hole;

[0008] The frame is equipped with a rotating head, a latching tooth is arranged inside the rotating head, and a clamping block is built into the rotating head; the sliding member is connected to the clamping block through a pulling member, and the sliding member moves relative to the base member so that the pulling member pulls the clamping block, so that the clamping block is fastened or loosened on the latching tooth to adjust the rotation state of the rotating head.

[0009] Preferably, the locking component includes a locking block and a column bar, the locking block and the column bar are a split assembly structure, a convex column extends from the bottom of the locking block; the locking block is provided with a socket, and the column bar is inserted into the socket to assemble the locking block and the column bar together.

[0010] Preferably, the pulling member includes a wire tube and a pull wire, the wire tube is a hollow structure, the pull wire is inserted into the wire tube and can move inside the wire tube; a wire head is provided at the end of the pull wire, and a tube head is provided at the end of the wire tube, the diameter of the wire head is larger than the inner cavity diameter of the wire tube, and the diameter of the tube head is larger than the diameter of the wire tube.

[0011] Preferably, the base member comprises a top, a sliding portion and a buckling portion, the buckling portion is located at the head end of the top, and a stopper is extended from the end of the top toward the sliding portion.

[0012] Preferably, the buckling portion is provided with a tube head buckling groove, the buckling portion is provided with a sealing cover, the sealing cover is correspondingly provided with a tube head buckling groove, and the tube head is embedded in the tube head buckling groove.

[0013] Preferably, the sliding portion is provided with a slot and a limiting slot, the slot passes through the sliding portion and is connected to the cavity, and when the locking member is placed in the cavity, the column bar is exposed from the slot to the side of the sliding portion.

[0014] Preferably, the sliding member has a docking portion, the docking portion is provided with a connecting groove, and the connecting groove is inserted into the sliding portion to assemble the sliding member and the base member together; a clamping column is provided in the connecting groove, and when the docking portion is connected to the sliding portion, the clamping column is located in the limiting groove, and the movement range of the sliding member is limited by the cooperation between the clamping column and the limiting groove.

[0015] Preferably, the clamping column is provided with a recessed position to accommodate the wire end, and the clamping column is provided with a groove for the pull wire to be embedded.

[0016] Preferably, the sliding member is provided with a recessed area, a push column extends from the docking portion toward the recessed area, and a thread end buckle groove is provided at one end of the sliding member away from the clamping column; an elastic member is provided in the recessed area, and both ends of the elastic member are respectively connected to the push column and the stop block, so that the relative movement between the sliding member and the base member is limited by the elastic member abutting against the push column and the stop block.

[0017] Preferably, the vehicle arm is provided with an unlocking button, which includes a key and a swing arm, the swing arm is connected with a pull wire, the end of the pull wire is embedded in the end buckle groove; the swing arm has a bend, the key is connected to the swing arm to push and turn the swing arm, and the pull wire of the swing arm is pulled to make the slide and the base move relative to each other. The beneficial effects of the present invention compared with the background technology are as follows:

[0018] The present invention proposes a new type of folding and extending structure for a baby stroller, which is mainly improved for the rotating and unfolding part of the baby stroller, and the simplified structure is convenient for the storage of the baby stroller. The new type of folding and extending structure for a baby stroller includes a frame, a car arm and a state conversion device, wherein the state conversion device includes a locking member, a pulling member, a sliding member and a base member. Through the relative movement of the sliding member and the base member, the locking member of the base member is extended / retracted into the cavity, and the connection state between the locking member and the car arm connection hole is controlled to realize the extension and retraction function of the car arm; at the same time, when the sliding member moves, it will pull the pulling member, and the pulling member is connected to the block of the rotating head. The connection state between the block and the tooth is changed by the moving position of the sliding member, thereby controlling the rotation of the rotating head. The structure is equipped with a state conversion device on the baby stroller, and the extension and rotation functions can be realized by using the state conversion device. The structure is simpler, the effect is excellent, and the assembly and disassembly are more convenient.

Brief Description of the Drawings

[0019] Figure 1 A schematic diagram of the folding and extending structure of the new baby carriage in a preferred embodiment of the present invention;

[0020] Figure 2 It is a partial exploded schematic diagram of the folding and extending structure of the new baby carriage in the preferred embodiment provided by the present invention;

[0021] Figure 3 A schematic diagram of the connection between the state conversion device and the rotating head in a preferred embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the structure of a state conversion device in a preferred embodiment of the present invention;

[0023] Figure 5 A schematic diagram of a base member in a preferred embodiment of the present invention;

[0024] Figure 6 A schematic diagram of a slide member in a preferred embodiment of the present invention;

[0025] Figure 7 It is a schematic diagram of a pumping member in a preferred embodiment provided by the present invention. [Specific implementation method]

[0026] Embodiments of the present invention are described in detail below, and example embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0027] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0029] The following is a further description of the specific embodiments of the present invention in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the present invention are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the present invention, but cannot be understood as limiting the present invention.

[0030] The preferred embodiment provided by the present invention is as follows: Figure 1 to Figure 7 As shown, a new type of folding and extending structure of a baby carriage comprises a carriage frame 1, a carriage arm 2 and a state conversion device 3; the state conversion device 3 comprises a locking member 4, a pulling member 5, a sliding member 6 and a base member 7 for accommodating the locking member 4; the base member 7 has a cavity 71, and the locking member 4 is placed in the cavity 71; the sliding member 6 is provided with a guide groove 61, and the sliding member 6 is connected with the base member 7 so that the locking member 4 in the cavity 71 is connected to the guide groove 61. The locking member 4 comprises a locking block 41 and a column 42, the length of the column 42 is greater than the thickness of the locking block 41, the locking block 41 and the column 42 are a split assembly structure, and a convex column 43 extends from the bottom of the locking block 41; the locking block 41 is provided with an insertion hole 44, and the column 42 is inserted into the insertion hole 44 to assemble the locking block 41 and the column 42 together.

[0031] The pulling member 5 includes a wire tube 51 and a pull wire 52. The wire tube 51 is a hollow structure. The pull wire 52 is inserted into the wire tube 51 and can be moved in the wire tube 51 by pulling. A wire head 53 is provided at the end of the pull wire 52. The wire head 53 is located at one end of the pull wire 52. The wire head 53 is perpendicular to the pull wire 52. A tube head 54 is provided at the end of the wire tube 51. The diameter of the wire head 53 is larger than the inner cavity diameter of the wire tube 51. The diameter of the tube head 54 is larger than the diameter of the wire tube 51.

[0032] The vehicle arm 2 is provided with a connection hole 21, and the sliding member 6 moves relative to the base member 7, so that the locking member 4 moves along the guide groove 61 to control the locking member 4 to extend or retract into the cavity 71, so as to adjust the connection state between the locking member 4 and the connection hole 21;

[0033] The frame 1 is installed with a rotating head 11, which is provided with a latch tooth 12 and a built-in block 13; the sliding member 6 is connected to the block 13 through the pulling member 5, and the sliding member 6 moves relative to the base member 7 so that the pulling member 5 pulls the block 13, so that the block 13 is fastened or loosened on the latch tooth 12 to adjust the rotation state of the rotating head 11.

[0034] The base member 7 includes a top 72, a sliding portion 73 and a buckle portion 74, the buckle portion 74 is connected to both the top 72 and the sliding portion 73, the buckle portion 74 is located at the head end of the top 72, and a stopper 75 extends from the end of the top 72 toward the sliding portion 73; the base member 7 is an integrated structure, the length of the sliding portion 73 is smaller than the length of the top 72, so that a clearance space 76 is formed between the sliding portion 73 and the stopper 75; the top 72 of the base member 7 is a long strip with a triangular cross-section, which is easy to adapt to the shape of the existing baby stroller arm.

[0035] The buckling portion 74 is provided with a tube head buckling groove 741, and the buckling portion 74 is equipped with a sealing cover 742. The sealing cover 742 is correspondingly provided with a tube head buckling groove 741, and the tube head 54 is embedded in the tube head buckling groove 741; the tube head buckling groove 741 is used to clamp the tube head 54, and the shapes of the tube head buckle groove 741 and the tube head 54 correspond to each other, so that the tube head 54 is fixed in the tube head buckle groove 741, and the sealing cover 742 is locked on the buckling portion 74 by screws, so that the two tube head buckle grooves 741 are correspondingly engaged to clamp the tube head 54.

[0036] The bottom of the sliding part 73 extends to both sides to form supporting edges 731 to support the docking part 62. There is an avoidance position 76 between the sliding part 73 and the stopper 75. The sliding part 73 is provided with a limit groove 732, which is arranged horizontally and passes through the plate of the sliding part 73. The cavity 71 of the base member 7 is located at the top 72 and the sliding part 73. The cavity 71 has an open bottom end, which is located at the sliding part 73. The locking member 4 partially extends out of the cavity 71 from the open bottom end. The sliding part 73 is provided with a slot 733, which passes through the sliding part 73 and is connected to the cavity 71. When the locking member 4 is placed in the cavity 71, the column 42 is exposed from the slot 733 to the side of the sliding part 73, so that the column 42 can be connected to the guide groove 61.

[0037] The slide member 6 has a docking portion 62, and the docking portion 62 is provided with a connection groove 63. The connection groove 63 is inserted into the sliding portion 73 to assemble the slide member 6 and the base member 7 together. The sliding portion 73 is a plate extending from the top 72. The side of the plate away from the top 72 extends a support edge 731 to support the docking portion 62. The width of the plate is less than the maximum width of the top 72 to reserve a space for inserting the docking portion 62, making the whole more compact. A clamping column 64 is provided in the connection groove 63. When the docking portion 62 is connected to the sliding portion 73, the clamping column 64 is located in the limit groove 732. The movement range of the slide member 6 is limited by the clamping column 64 and the limit groove 732. The clamping column 64 is provided with a recess 65 to accommodate the wire head 53, and the clamping column 64 is provided with a groove 66 for the pull wire 52 to be embedded. The docking portion 62 is provided with a guide groove 61 which runs through the docking portion 62 . The guide groove 61 includes an inclined first groove 67 and a parallel second groove 68 . A bending position is provided between the first groove 67 and the second groove 68 to form an angle between the first groove 67 and the second groove 68 .

[0038] The slide member 6 is provided with a recessed area 69, and a push column 621 extends from the docking portion 62 to the recessed area 69. The push column 621 and the clamping column 64 are respectively located at the two ends of the docking portion 62. A thread end buckle groove 622 is provided at one end of the slide member 6 away from the clamping column 64. The thread end buckle groove 622 and the thread end 53 have corresponding shapes, so that the thread end 53 is fixed in the thread end buckle groove 622. An elastic member 691 is provided in the recessed area 69, and the two ends of the elastic member 691 are respectively connected to the push column 621 and the stopper 75. The connection method can be welding or hooking with holes. The elastic member 691 can be a conventional spring such as a compression spring. The elastic member 691 abuts against the push column 621 and the stopper 75 to limit the relative movement of the slide member 6 and the base member 7, that is, when the slide member 6 moves, the elastic member 691 is used to reset.

[0039] Most of the existing vehicle arms are telescopic structures. For example, the vehicle arm 2 in the present structure includes an arm rod 22 and a handrail rod 23. Both the arm rod 22 and the handrail rod 23 are hollow structures. The connecting hole 21 of the vehicle arm 2 is provided on the arm rod 22 and the handrail rod 23, and the connecting holes 21 of the arm rod 22 and the handrail rod 23 correspond to each other. The arm rod 22 is fixedly connected to the rotating head 11, and the handrail rod 23 is inserted into the arm rod 22 and slides along the arm rod 22 to achieve extension or storage. The state conversion device 3 is installed in the arm rod 22, and the state conversion device 3 is fixedly connected to the rotating head 11 through the buckle portion 74, and the fixing method adopts screw locking.

[0040] In the initial state, the column 42 is located at the lowest position of the guide groove 61 (i.e., the end of the first groove 67 away from the second groove 68). At this time, the boss 43 of the locking block 41 extends out of the cavity 71 and is inserted into the connecting holes 21 of the arm rod 22 and the handrail rod 23, and the boss 43 is used to limit the relative movement of the arm rod 22 and the handrail rod 23.

[0041] When unlocking and storage is required, the vehicle arm 2 is provided with an unlocking button 8, which includes a button 81 and a swing arm 82. Furthermore, the button 81 is provided on the handrail rod 23 of the vehicle arm 2, and the handrail rod 23 is correspondingly provided with a through hole for the button to be installed; in the present embodiment, the pull wires 52 are all of the same type, the swing arm 82 is connected with the pull wires 52, and the thread ends 53 of the pull wires 52 are embedded in the thread end buckle groove 622; the swing arm 82 has a bend for easy rotation, the button 81 is connected to the swing arm 82, and the button 81 is pressed to push and turn the swing arm 82, so that the pull wire 52 of the swing arm pulls the sliding member 6, so that the sliding member 6 and the base member 7 move relative to each other. As the slide member 6 moves, the column 42 of the locking member 4 will move along the guide groove 61, driving the locking member 4 to move upward as a whole, so that the locking member 4 retracts into the cavity 71, and the connection between the protruding column 43 and the connecting hole 21 is released, so that the arm 22 and the handrail 23 can move relative to each other. Since one end of the arm 22 is fixed to the rotating head 11, the handrail 23 can be extended out of the arm 22 to achieve the extended state, extending the length of the vehicle arm 2; when it is necessary to retract and reduce the length of the vehicle arm 2, the handrail 23 can be pushed back to make the protruding column 43 re-insert the connecting holes 21 of both the arm 22 and the handrail 23. The two ends of the elastic member 691 of the recessed area 69 are respectively connected to the push column 621 and the stopper 75, and the elastic member 691 can be used to make the slide member 6 and the base member 7 close to reset.

[0042] Since the slide member 6 is provided with a clamping column 64 for fastening the pull wire 52 of the pulling member 5, and the pull wire 52 is connected to the clamping block 13 of the rotating head 11, when the slide member 6 is pulled open, the clamping block 13 will be driven to rotate through the pull wire 52, so that the teeth of the clamping block 13 are disconnected from the clamping teeth 12 in the rotating head 11, so that the rotating head 11 can be rotated on the frame 1 to achieve the rotating storage function. The clamping block 13 is provided with a compression spring to cooperate with the reset of the rotating clamping block 13. Further explanation, the main point of the present invention lies in the structure of the state conversion device, and the clamping block 13 and the rotating head 11 have the same shaft rod, compression spring connection, and the position and shape of the clamping teeth 12 and the clamping block 13 are all conventional designs of people in this field, so they are not marked in detail in the figure, but it should not affect the understanding of the main structure.

[0043] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention. The schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Through the description of the above structure and principle, those skilled in the art should understand that the present invention is not limited to the above-mentioned specific embodiments, and improvements and substitutions based on the present invention using the known technology in the art fall within the scope of protection of the present invention and should be defined by the claims.

Claims

1. A new type of foldable and extendable baby carriage, characterized in that: It includes a vehicle frame, a vehicle arm and a state conversion device; The state conversion device comprises a locking member, a pulling member, a sliding member, and a base member for accommodating the locking member; the base member has a cavity, and the locking member is placed in the cavity; the sliding member is provided with a guide groove, and the sliding member is connected to the base member so that the locking member in the cavity is connected to the guide groove; The vehicle arm is provided with a connection hole, and the sliding member moves relative to the base member, so that the locking member moves along the guide groove to control the locking member to extend or retract into the cavity, so as to adjust the connection state between the locking member and the connection hole; The frame is equipped with a rotating head, a latching tooth is arranged inside the rotating head, and a clamping block is arranged inside the rotating head; the sliding member is connected to the clamping block through a pulling member, and the sliding member moves relative to the base member so that the pulling member pulls the clamping block, so that the clamping block is fastened or loosened on the latching tooth, so as to adjust the rotation state of the rotating head; The base member comprises a top, a sliding portion and a buckling portion, wherein the buckling portion is located at the head end of the top, and a stopper is extended from the end of the top toward the sliding portion; The locking member comprises a locking block and a column bar, wherein the locking block and the column bar are a split assembly structure, and a convex column extends from the bottom of the locking block; the locking block is provided with an insertion hole, and the column bar is inserted into the insertion hole to assemble the locking block and the column bar together; The sliding part is provided with a slot and a limit slot, the slot passes through the sliding part and is connected with the cavity, when the locking member is placed in the cavity, the column bar is exposed from the slot to the side of the sliding part; The slide member has a docking portion, which is provided with a connecting groove, which is inserted into the sliding portion to assemble the slide member and the base member together; a clamping column is provided in the connecting groove, and when the docking portion is connected to the sliding portion, the clamping column is located in the limiting groove, and the movement range of the slide member is limited by the cooperation of the clamping column and the limiting groove.

2. The novel foldable and extendable structure of a baby stroller according to claim 1, characterized in that: The pulling part includes a wire tube and a pull wire. The wire tube is a hollow structure. The pull wire passes through the wire tube and can move inside the wire tube. A wire head is provided at the end of the pull wire, and a tube head is provided at the end of the wire tube. The diameter of the wire head is larger than the inner cavity diameter of the wire tube, and the diameter of the tube head is larger than the diameter of the wire tube.

3. The new foldable and extendable structure of a baby stroller according to claim 2, characterized in that: The buckle connection part is provided with a tube head buckle groove, and the buckle connection part is configured with a sealing cover, and the sealing cover is correspondingly provided with a tube head buckle groove, and the tube head is embedded in the tube head buckle groove.

4. The novel foldable and extendable structure of a baby stroller according to claim 2, characterized in that: The clamping column is provided with a recessed position to accommodate the wire head, and the clamping column is provided with a groove for the pull wire to be embedded.

5. The new foldable and extendable structure of a baby stroller according to claim 1, characterized in that: The sliding member is provided with a recessed area, a push column extends from the docking portion to the recessed area, and a thread end buckle groove is provided at one end of the sliding member away from the clamping column; an elastic member is provided in the recessed area, and the two ends of the elastic member are respectively connected to the push column and the stop block, and the relative movement between the sliding member and the base member is limited by the elastic member abutting against the push column and the stop block.

6. The novel foldable and extendable structure of a baby carriage according to claim 5, characterized in that: The vehicle arm is provided with an unlocking button, which includes a button and a swing arm. The swing arm is connected with a pull wire, and the wire end of the pull wire is embedded in the wire end buckle groove; the swing arm has a bent angle, and the button is connected to the swing arm to push and turn the swing arm, and the pull wire of the swing arm is pulled to make the sliding part and the base part move relative to each other.

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