A foldable stroller

Abstract

The utility model discloses a kind of foldable baby strollers, stroller main body includes frame main body and seat frame unit being arranged on frame main body, locking structure is arranged on frame main body;Locking structure has locking state and unlocking state;Frame main body includes connecting seat;Connecting seat is arranged with front support, rear support and push rod unit;Pull rod unit is rotatably arranged between front support and rear support;Pull rod unit and push rod unit are rotatably arranged with connecting rod unit, the utility model structure design is reasonable, locking structure is set, and locking structure has locking state and unlocking state, stroller main body can be switched after the state of locking structure is switched, to switch between opening state and folding state;Connecting seat is set, and play the connecting fixed effect between front support, rear support and push rod unit;User can operate locking structure to open or fold stroller main body, improve the convenience of use.

Description

Technical Field

[0001] This utility model relates to the field of baby strollers, and more particularly to a foldable baby stroller. Background Technology

[0002] Strollers have become an essential tool for infants and toddlers when traveling. Beyond the basic requirements of sturdiness and safety, users are increasingly emphasizing features such as small size, lightweight design, and foldability. Strollers with these characteristics can be easily placed in a car trunk and take up less space on buses or trains, greatly facilitating travel and portability. However, existing strollers still occupy a significant amount of space when folded, and the folding and unfolding processes are relatively cumbersome, making them inconvenient when going up and down stairs or using public transportation. Therefore, designing a stroller that is smaller in size when folded and easier to unfold has become a pressing problem for those skilled in the art. Utility Model Content

[0003] The technical problem to be solved by this invention is to provide a foldable baby stroller, addressing the current state of the technology.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A foldable baby stroller includes a stroller body; the stroller body includes a frame body and a seat frame unit disposed on the frame body, and the frame body is provided with a locking structure; the locking structure has a locked state and an unlocked state; when the locking structure is in the locked state, the stroller body is in an open state; when the locking structure is in the unlocked state, the stroller body is in a folded state; the frame body includes a connecting seat; a front support, a rear support, and a push rod unit are arranged on the connecting seat; a pull rod unit is rotatably arranged between the front support and the rear support; a connecting rod unit is rotatably arranged between the pull rod unit and the push rod unit.

[0005] The aforementioned components achieve the following effects: By incorporating a locking structure with both locked and unlocked states, the trolley body can be switched between open and folded states by adjusting the locking structure's position; a connecting seat secures the front and rear supports to the push rod unit; a pull rod unit connects the front and rear supports; and a linkage unit connects the pull rod unit and the push rod unit. Users can open or fold the trolley body by operating the locking structure, improving ease of use.

[0006] Preferably, the connecting seat is provided with a front hinge seat and an upper hinge seat; the front bracket is rotatably connected to the connecting seat via the front hinge seat; and the push rod unit is rotatably connected to the connecting seat via the upper hinge seat.

[0007] The effects achieved by the above components are as follows: by setting the front hinge seat, the front bracket can rotate relative to the connecting seat through the front hinge seat; by setting the upper hinge seat, the push rod unit can rotate relative to the connecting seat through the upper hinge seat.

[0008] Preferably, the push rod unit includes an upper push rod and a lower push rod; a first hinge seat is arranged between the upper push rod and the lower push rod; the locking structure is provided on the upper push rod.

[0009] The effect achieved by the above components is that by setting up an upper push rod and a lower push rod, and setting a first hinge seat between the upper push rod and the lower push rod, the upper push rod and the lower push rod can rotate relative to each other through the first hinge seat.

[0010] Preferably, the locking structure includes a first locking housing, a second locking housing, a first pressing member, and a second pressing member; the first locking housing and the second locking housing cooperate to form an installation cavity; a portion of the first pressing member and the second pressing member are disposed within the installation cavity; a locking groove is provided within the first pressing member; the second pressing member is disposed within the locking groove; a stop block is provided on the second pressing member; a second pressing portion is provided on the second pressing member outside the installation cavity, and a first pressing portion is provided on the first pressing member outside the installation cavity; a reset member is provided on the inner wall of the installation cavity and on the side of the second pressing member opposite to the position of the second pressing portion.

[0011] The aforementioned components achieve the following effects: by providing a first locking housing and a second locking housing, and forming an internal mounting cavity, the locking structure components can be placed inside; by providing a first pressing member and a second pressing member, the user can switch between the locked and unlocked states by applying pressure to the first pressing member and the second pressing member; by providing a locking groove, and the second pressing member being disposed within the locking groove, the second pressing member is limited; by providing a stop block, and the stop block cooperating with the locking groove, the second pressing member is limited within the locking groove after the stop block and the locking groove cooperate; by providing a first pressing part and a second pressing part, the user can easily operate the device; and by providing a reset member, the second pressing part is reset.

[0012] Preferably, a limiting strip is provided inside the mounting cavity; a sliding member is slidably disposed on the limiting strip; a pull wire is arranged on the sliding member; the pull wire is connected to the first hinge seat; a guide surface is arranged on the first pressing member; the guide surface is inclined; and the guide surface is in contact with the bottom of the sliding member.

[0013] The effects achieved by the above components are as follows: by setting a limiting strip and sliding a slider on the limiting strip, the slider can slide on the limiting strip; by setting a pull line and connecting the two ends of the pull line to the slider and the first hinge seat respectively, the first hinge seat is rotated by the pull line after the slider slides; by setting an inclined guide surface, the slider will slide along the inclined surface of the guide surface when the guide surface comes into contact with the slider.

[0014] Preferably, the pull rod unit includes a front pull rod and a rear pull rod; the front pull rod is hinged to the front bracket, and the rear pull rod is hinged to the rear bracket; the front pull rod and the rear pull rod are hinged together.

[0015] The effects achieved by the above components are as follows: by setting a front tie rod and hinged to the front bracket, the front tie rod and the front bracket can rotate relative to each other; by setting a rear tie rod and hinged to the rear bracket, the rear tie rod and the rear bracket can rotate relative to each other; by hinged to the front tie rod and the rear tie rod, the front tie rod and the rear tie rod can rotate relative to each other.

[0016] Preferably, the linkage unit includes a lower linkage and an upper linkage; the lower linkage is hinged to the rear pull rod, and the upper linkage is hinged to the lower push rod; the lower linkage and the upper linkage are hinged to each other; the lower linkage is hinged to the rear support at any position.

[0017] The effects achieved by the above components are as follows: by setting an upper connecting rod and hinged to the lower push rod, the upper connecting rod and the lower push rod can rotate relative to each other; by setting a lower connecting rod and hinged to the rear pull rod, the lower connecting rod and the rear pull rod can rotate relative to each other; by hinged to the rear bracket at any position of the lower connecting rod, the lower connecting rod and the rear bracket can rotate relative to each other.

[0018] Preferably, the upper hinge seat is provided with an extension; the extension is hinged to the seat frame unit.

[0019] The effect achieved by the above-mentioned components is that, by providing an extension, the seat frame unit can be rotatably connected to the upper hinge seat through the extension.

[0020] Preferably, a handrail is hinged to the lower push rod and the upper connecting rod.

[0021] The effect achieved by the above-mentioned components is to prevent the risk of children falling off the stroller when the user is using the stroller body by setting up the handrail.

[0022] Preferably, casters are provided at the bottom of the frame body.

[0023] The effect achieved by the above components is to make it convenient for users to move the main body of the cart by setting casters.

[0024] Compared with the prior art, the advantages of this utility model are as follows: By setting a locking structure with locked and unlocked states, the trolley body can switch between open and folded states by changing the state of the locking structure; by setting a connecting seat, it serves to connect and fix the front support, rear support and push rod unit; by setting a pull rod unit, it is used to connect the front support and rear support; by setting a linkage unit, it is used to connect the pull rod unit and push rod unit; the user can open or fold the trolley body by operating the locking structure, which improves the convenience of use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the locking structure of this utility model; Figure 3 This is a schematic diagram of the folded state of this utility model.

[0026] Reference numerals: 1. Cart body; 11. Frame body; 12. Seat frame unit; 13. Front support; 14. Rear support; 15. Handrail frame; 16. Casters; 2. Locking structure; 21. First locking housing; 22. Second locking housing; 23. First pressing element; 24. Second pressing element; 25. First pressing part; 26. Second pressing part; 27. Mounting cavity; 28. Locking groove; 29. ​​Stop block; 211. Reset component; 212. Limiting strip; 213. Sliding component; 214. Pull wire; 215. Guide surface; 3. Connecting seat; 31. Front hinge seat; 32. Upper hinge seat; 33. Extension; 4. Push rod unit; 41. Upper push rod; 42. Lower push rod; 43. First hinge seat; 5. Pull rod unit; 51. Front pull rod; 52. Rear pull rod; 6. Linkage unit; 61. Upper link; 62. Lower link. Detailed Implementation

[0027] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0028] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, in addition to indicating orientation or positional relationship, the aforementioned terms may also be used to indicate other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in this utility model can be understood according to the specific circumstances.

[0030] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts. The connection methods described herein are existing technologies without any modifications and are common knowledge to those skilled in the art. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] like Figures 1 to 3As shown, this utility model provides a foldable baby stroller, including a stroller body 1; the stroller body 1 includes a frame body 11 and a seat frame unit 12 disposed on the frame body 11, and a locking structure 2 is provided on the frame body 11; the locking structure 2 has a locked state and an unlocked state; when the locking structure 2 is in the locked state, the stroller body 1 is in the open state; when the locking structure 2 is in the unlocked state, the stroller body 1 is in the folded state; the frame body 11 includes a connecting seat 3; a front support 13, a rear support 14 and a push rod unit 4 are arranged on the connecting seat 3; a pull rod unit 5 is rotatably arranged between the front support 13 and the rear support 14; a connecting rod unit 6 is rotatably arranged between the pull rod unit 5 and the push rod unit 4. By incorporating a locking structure 2 with both locked and unlocked states, the trolley body 1 can switch between open and folded states by changing the state of the locking structure 2. A connecting seat 3 connects and secures the front support 13, rear support 14, and push rod unit 4. A pull rod unit 5 connects the front support 13 and rear support 14. A connecting rod unit 6 connects the pull rod unit 5 and push rod unit 4. Users can open or fold the trolley body 1 by operating the locking structure 2, improving ease of use.

[0033] The connecting seat 3 is provided with a front hinge seat 31 and an upper hinge seat 32; the front bracket 13 is rotatably connected to the connecting seat 3 via the front hinge seat 31; the push rod unit 4 is rotatably connected to the connecting seat 3 via the upper hinge seat 32. By providing the front hinge seat 31, the front bracket 13 can rotate relative to the connecting seat 3; by providing the upper hinge seat 32, the push rod unit 4 can rotate relative to the connecting seat 3 via the upper hinge seat 32.

[0034] The connection between the front hinge seat 31 and the upper hinge seat 32 described in this utility model can be any type of component that can be connected and rotated. Moreover, this component is a conventional and well-known structure and component for those skilled in the art, so there is no need for further description or accompanying drawings.

[0035] The push rod unit 4 includes an upper push rod 41 and a lower push rod 42; a first hinge seat 43 is arranged between the upper push rod 41 and the lower push rod 42; the locking structure 2 is provided on the upper push rod 41. By setting the upper push rod 41 and the lower push rod 42, and setting the first hinge seat 43 between the upper push rod 41 and the lower push rod 42, the upper push rod 41 and the lower push rod 42 can rotate relative to each other through the first hinge seat 43.

[0036] The connection method between the first hinge seats 43 described in this utility model is any kind of component that can be connected and rotated. Moreover, the component is a conventional and well-known structure and component for those skilled in the art, so there is no need for excessive description or accompanying drawings.

[0037] The locking structure 2 includes a first locking housing 21, a second locking housing 22, a first pressing member 23, and a second pressing member 24; the first locking housing 21 and the second locking housing 22 cooperate to form an installation cavity 27; a portion of the first pressing member 23 and the second pressing member 24 are disposed within the installation cavity 27; a locking groove 28 is provided within the first pressing member 23; the second pressing member 24 is disposed within the locking groove 28; a stop block 29 is provided on the second pressing member 24; a second pressing part 26 is provided on the second pressing member 24 outside the installation cavity 27, and a first pressing part 25 is provided on the first pressing member 23 outside the installation cavity 27; a reset member 211 is provided on the inner wall of the installation cavity 27 and on the side of the second pressing member 24 opposite to the position of the second pressing part 26. By providing a first locking housing 21 and a second locking housing 22, with an internal mounting cavity 27, the components of the locking structure 2 can be placed inside. By providing a first pressing member 23 and a second pressing member 24, the user can switch between locked and unlocked states by applying pressure to the first pressing member 23 and the second pressing member 24. By providing a locking groove 28, with the second pressing member 24 positioned within the locking groove 28, the second pressing member 24 is limited in position. By providing a stop block 29, which cooperates with the locking groove 28, the second pressing member 24 is limited within the locking groove 28. By providing a first pressing part 25 and a second pressing part 26, the user can easily operate the device. By providing a reset member 211, the second pressing part 26 is reset.

[0038] A limiting strip 212 is provided inside the mounting cavity 27; a sliding member 213 is slidably disposed on the limiting strip 212; a pull wire 214 is arranged on the sliding member 213; the pull wire 214 is connected to the first hinge seat 43; a guide surface 215 is arranged on the first pressing member 23; the guide surface 215 is arranged at an angle; the guide surface 215 is in contact with the bottom of the sliding member 213. By setting a limiting strip 212 and sliding a slider 213 on the limiting strip 212, the slider 213 can slide on the limiting strip 212. By setting a pull wire 214 and connecting the two ends of the pull wire 214 to the slider 213 and the first hinge seat 43 respectively, the first hinge seat 43 is rotated by the pull wire 214 after the slider 213 slides. By setting an inclined guide surface 215, when the guide surface 215 comes into contact with the slider 213, the slider 213 will slide along the inclined surface of the guide surface 215.

[0039] The pull rod unit 5 includes a front pull rod 51 and a rear pull rod 52; the front pull rod 51 is hinged to the front bracket 13, and the rear pull rod 52 is hinged to the rear bracket 14; the front pull rod 51 and the rear pull rod 52 are hinged together. By providing the front pull rod 51 and hinged to the front bracket 13, the front pull rod 51 and the front bracket 13 can rotate relative to each other; by providing the rear pull rod 52 and hinged to the rear bracket 14, the rear pull rod 52 and the rear bracket 14 can rotate relative to each other; by hinged to the front pull rod 51 and the rear pull rod 52, the front pull rod 51 and the rear pull rod 52 can rotate relative to each other.

[0040] The hinged connection method and components described in this utility model are any kind of components that can be connected and rotated. Moreover, these components are conventional and well-known structures and components for those skilled in the art, so there is no need for further elaboration or accompanying drawings.

[0041] The linkage unit 6 includes a lower linkage 62 and an upper linkage 61; the lower linkage 62 is hinged to the rear pull rod 52, and the upper linkage 61 is hinged to the lower push rod 42; the lower linkage 62 and the upper linkage 61 are hinged together; the lower linkage 62 is hinged to the rear support 14 at any position. The upper linkage 61 and the lower push rod 42 are hinged together, allowing relative rotation between them; the lower linkage 62, hinged to the rear pull rod 52, allows relative rotation between them; and the lower linkage 62 is hinged to the rear support 14 at any position, allowing relative rotation between them.

[0042] The hinged connection method and components described in this utility model are any kind of components that can be connected and rotated. Moreover, these components are conventional and well-known structures and components for those skilled in the art, so there is no need for further elaboration or accompanying drawings.

[0043] The upper hinge seat 32 is provided with an extension 33; the extension 33 is hinged to the seat frame unit 12. By providing the extension 33, the seat frame unit 12 can be rotatably connected to the upper hinge seat 32 through the extension 33.

[0044] The hinged connection method and components described in this utility model are any kind of components that can be connected and rotated. Moreover, these components are conventional and well-known structures and components for those skilled in the art, so there is no need for further elaboration or accompanying drawings.

[0045] The lower push rod 42 is hinged to the upper connecting rod 61 and a handrail 15 is provided. By providing the handrail 15, the risk of children falling off the stroller body 1 is prevented when the user is using it.

[0046] The hinged connection method and components described in this utility model are any kind of components that can be connected and rotated. Moreover, these components are conventional and well-known structures and components for those skilled in the art, so there is no need for further elaboration or accompanying drawings.

[0047] The bottom of the main frame 11 is equipped with casters 16. The casters 16 make it convenient for users to move the main frame 1.

[0048] In this utility model, when the user needs to store the trolley body 1, the second pressing part 26 of the second pressing member 24 can be pressed. At this time, the stop block 29 will disengage from the locking groove 28, allowing the first pressing member 23 to be pressed. Then, the second pressing part 26 is pressed. At this time, the guide surface 215 will push the sliding member 213 to move on the limiting strip 212. At this time, the pull cable 214 will drive the first hinge seat 43 to rotate. At this time, the upper push rod 41 and the lower push rod 42 can also rotate relative to each other. Then the upper connecting rod 61 and the lower connecting rod 62 will also rotate together with the upper push rod 41. Then, the front pull rod 51 and the rear pull rod 52 will rotate together. At this time, the front pull rod 51 will rotate with the front bracket 13 to complete the folding. During the folding process, the extension part 33 on the first hinge seat 43 will fold together with the seat frame unit 12.

[0049] In the description of this specification, references are made to the terms "one embodiment", "some embodiments", "example", "specific example". The descriptions using terms such as "example" or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0050] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the existing technology, and will not be described in detail here.

[0051] The above description is only a preferred embodiment of this utility model. For those skilled in the art, various modifications and variations can be made in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A foldable baby stroller, comprising a stroller body; the stroller body includes a frame body and a seat frame unit disposed on the frame body, characterized in that: The frame body is provided with a locking structure; the locking structure has a locked state and an unlocked state; when the locking structure is in the locked state, the trolley body is in the open state; when the locking structure is in the unlocked state, the trolley body is in the folded state; the frame body includes a connecting seat; a front bracket, a rear bracket and a push rod unit are arranged on the connecting seat; a pull rod unit is rotatably arranged between the front bracket and the rear bracket; a connecting rod unit is rotatably arranged between the pull rod unit and the push rod unit.

2. The foldable baby stroller according to claim 1, characterized in that: The connecting seat is provided with a front hinge seat and an upper hinge seat; the front bracket is rotatably connected to the connecting seat via the front hinge seat; the push rod unit is rotatably connected to the connecting seat via the upper hinge seat.

3. A foldable baby stroller according to claim 2, characterized in that: The push rod unit includes an upper push rod and a lower push rod; a first hinge seat is arranged between the upper push rod and the lower push rod; the locking structure is provided on the upper push rod.

4. A foldable baby stroller according to claim 3, characterized in that: The pull rod unit includes a front pull rod and a rear pull rod; the front pull rod is hinged to the front bracket, and the rear pull rod is hinged to the rear bracket; the front pull rod and the rear pull rod are hinged together.

5. A foldable baby stroller according to claim 4, characterized in that: The linkage unit includes a lower linkage and an upper linkage; the lower linkage is hinged to the rear pull rod, and the upper linkage is hinged to the lower push rod; the lower linkage and the upper linkage are hinged to each other; the lower linkage is hinged to the rear support at any position.

6. A foldable baby stroller according to claim 5, characterized in that: The upper hinge seat is provided with an extension; the extension is hinged to the seat frame unit.

7. A foldable baby stroller according to claim 6, characterized in that: The locking structure includes a first locking housing, a second locking housing, a first pressing member, and a second pressing member; the first locking housing and the second locking housing cooperate to form a mounting cavity; a portion of the first pressing member and the second pressing member are disposed within the mounting cavity; a locking groove is provided within the first pressing member; the second pressing member is disposed within the locking groove; a stop block is provided on the second pressing member; a second pressing part is provided on the second pressing member outside the mounting cavity, and a first pressing part is provided on the first pressing member outside the mounting cavity; a reset member is provided on the inner wall of the mounting cavity and on the side of the second pressing member opposite to the position of the second pressing part.

8. A foldable baby stroller according to claim 7, characterized in that: A limiting strip is provided inside the mounting cavity; a sliding member is slidably disposed on the limiting strip; a pull wire is arranged on the sliding member; the pull wire is connected to the first hinge seat; a guide surface is arranged on the first pressing member; the guide surface is arranged at an angle; the guide surface is in contact with the bottom of the sliding member.

9. A foldable baby stroller according to claim 6, characterized in that: The lower push rod and the upper connecting rod are hinged together and a handrail is provided.

10. A foldable baby stroller according to claim 1, characterized in that: The bottom of the main frame is equipped with casters.

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